Group iia elementsAbstract. The metals found in Group IA and IIA have low ionization potentials and low electronegativities. As a result, they are reactive reducing agents. Because the oxides of these metals ...The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). Hereof, what do you mean by alkaline earth metals? Definition of alkaline earth metal : any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium ...Vacuum evaporated films from a-Se doped with a Group IIA element have demonstrated excellent n-like transport (electron ranges being much longer than the hole ranges). Differential scanning calorimetry (DSC) studies of the thermal stability of doped glasses and films have shown that these additives encourage crystallization.Magnesium is the eighth most abundant element in the earth's crust although not found in it's elemental form. It is a Group 2 element (Group IIA in older labelling schemes). Group 2 elements are called alkaline earth metals. Magnesium metal burns with a very bright light. Magnesium is an important element for plant and animal [email protected]{osti_68473, title = {Thermodynamic properties of the Group 1A elements}, author = {Alcock, C B and Itkin, V P and Chase, M W}, abstractNote = {This review describes thermodynamic properties of condensed phases of the alkali metals, excluding francium for which the amount of information is too limited. The properties considered are: heat capacities from 0 to 1600 K, temperatures and ...Classification of Elements based on Electronic Configuration: 1. s-block elements: The block of alkali metals (group IA or 1) i.e. Li to Fr and alkaline earth metals (group IIA or 2) i.e. Be to Ra which are present at the left hand side of the periodic table; These elements have the last electron in s-subshell; 2. p- block elements:Main Group. The main group elements of the periodic table are those elements that belong to the "s" and "p" blocks. Counting the columns or table groups across the table ignoring the transition elements gives 8 element groups which match the filling of the eight spaces for electrons in the ns and np subshells, ns2np6. Leaderboard: 7-S & P Block Elements + Transition Elements. maximum of 50 points; Pos. Name Entered on Points Result; Table is loading: No data available: Leave a Reply Cancel reply. Your email address will not be published. Required fields are marked * Comment * Name * Email * Website.Group 2A (or IIA) of the periodic table are the alkaline earth metals : beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They are harder and less reactive than the alkali metals of Group 1A.1. Main group elements are Group 1 (IA or alkali metals), Group 2 (IIA or alkaline earth metals), Group 13 (IIIA), Group 14 (IVa), Group 15 (VA), Group 16 (VIA or chalcogens), Group 17 (VIIA or halogens) and Group 18 (0 or VIIIA, or Noble Gases or Inert Gases).how to cancel quantum drive star citizen The alkaline earths are the elements located in Group IIA of the periodic table. This is the second column of the table. The list of elements that are alkaline earth metals is short. In order of increasing atomic number, the six element names and symbols are: Beryllium (Be) Magnesium (Mg) Calcium (Ca) Strontium (Sr) Barium (Ba) Radium (Ra)alkaline-earth metal, any of the six chemical elements that comprise Group 2 (IIa) of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). Prior to the 19th century, substances that were nonmetallic, insoluble in water, and unchanged by fire were known as earths. Those earths, such as lime (calcium oxide), that ...Group. See About the Periodic Table for information on how Group can be used to characterize an element. Group 1: alkali metals, or lithium family. Group 2: alkaline earth metals, or beryllium family. Group 3: the scandium family. Group 4: the titanium family. Group 5: the vanadium family. Group 6: the chromium family. The IIA family is made up of the alkaline earth metals. All these elements tend to lose two electrons. Calcium (Ca) is an important member of the IIA family (you need calcium for healthy teeth and bones). ... These electron configurations show that there are some similarities among each group of elements in terms of their valence electrons.By moving down in the group, the number of occupied energy levels are increased from 2 to 6 and radium of an atom of the element is increased from 134 pm to 225 pm. Atomic radius increases from top to bottom of the elements and an additional electron shell or energy level are being added to each successive element.This is summarised in the mission statement of internal audit which says that internal audit’s role is 'to enhance and protect organisational value by providing risk-based and objective assurance, advice and insight'. Hence, internal auditors, along with executive management, non-executive management and the external auditors are a critical ... DPI (0.02-20 microM), added 90 min before cytokine activation, inhibited both group IIA PLA(2) mRNA and enzymatic activity in a concentration-dependent manner. By electrophoretic mobility shift analysis, cytokine activation also increased specific NF-kappaB binding to one of two NF-kappaB consensus elements in the rat group IIA PLA(2) promoter ...Classification of Elements based on Electronic Configuration: 1. s-block elements: The block of alkali metals (group IA or 1) i.e. Li to Fr and alkaline earth metals (group IIA or 2) i.e. Be to Ra which are present at the left hand side of the periodic table; These elements have the last electron in s-subshell; 2. p- block elements:By moving down in the group, the number of occupied energy levels are increased from 2 to 6 and radium of an atom of the element is increased from 134 pm to 225 pm. Atomic radius increases from top to bottom of the elements and an additional electron shell or energy level are being added to each successive element.All amphoteric elements are metals and they are located in s, p, d blocks. Be : s block (IIA group) Al : p block (IIIA group) Zn : d block (IIB group) Sn : p block (IVA group) Pb : p block (IVA group) Amphoteric behavior of Be, Al, Zn, Sn, Pb. Now we discuss about amphoteric metals behavior of Be, Al, Zn, Sn, Pb and their oxides.Inorganic Reactions and Methods systemizes the discipline of modern inorganic chemistry according to a plan constructed by a council of editorial advisors and consults that include three Nobel laureates (E.O. Fischer, H. Taube, and G. Wilkinson). Rather than producing a collection of unrelated review articles, this series creates a framework that reflects the creative potential of this ...Properties of the Group IIA Alkaline-Earth Metals is given below- Element Symbol Electron Usual Radius/pm Configuration Oxidation State Atomic Ionic (M2+) Beryllium Be [He]2s2 +2 89 31 Magnesium Mg [Ne]3s2 +2 136 65 Calcium Ca [Ar]4s2 +2 174 99 Strontium Barium Sr Ba [Kr]5s2 [Xe]6s2 Page No +2 +2 191 198 113 135 4.The trace elements of Group 2, beryllium (Be), strontium (Sr), and barium (Ba), belong to the alkaline earths and behave similarly to Ca and Mg.cat 416 series 2 review Group 2 / IIA; Alkaline Earth Metals Group. All are silvery-shining metals that oxidize immdiately in air. Stable oxide layers, however, protect some of beryllium (Be) and magnesium (Mg) so they can be used in their metallic state and are stable in water (which dissolves the others) Magnesium (Mg), calcium (Ca) are technically important (not to ... DPI (0.02-20 microM), added 90 min before cytokine activation, inhibited both group IIA PLA(2) mRNA and enzymatic activity in a concentration-dependent manner. By electrophoretic mobility shift analysis, cytokine activation also increased specific NF-kappaB binding to one of two NF-kappaB consensus elements in the rat group IIA PLA(2) promoter ...My Dashboard; Modules; Week 9: Chemistry of Elements (Group II) PCQA111_Group IIA; Second Semester, 2020-2021. Home; Syllabus; Modules; Assignments; Files; Quizzes; Pages Sep 19, 2018 · The elements in group 13 and group 15 form a cation with a -3 charge each. And elements in group 14 have a charge of -4. Elements in group 16 have a charge of -2, while all the elements of group 17 are halogens with a charge of -1 each. Alkali Metals: Group 1 . Here is the full list of metals in group one (+1 charge): Lithium (Li). Sodium (Na). Unformatted text preview: Login HomeScienceChemistry alkaline-earth metal chemical element Actions Alternate titles: Group 2 element, Group IIa element By Courtenay Stanley Goss Phillips | See All • Edit History Table of Contents alkaline-earth metal, any of the six chemical elements that comprise Group 2 (IIa) of the periodic table.The elements are beryllium (Be), magnesium (Mg), calcium ...Group IA s-block elements have one electron whereas Group IIA elements have two electrons. Due to the difference in the outermost shell electronic configuration, the valency of Group IA elements is monovalent and Group IIA is divalent. Also, the elements of Group one are soft and have a low melting point.The elements in Group IIIA (B, Al, Ga, In, and Tl) can be divided into three classes. Boron is the only element in this group that is not a metal. It behaves like a semimetal or even a nonmetal. Aluminum is the third most abundant element in the earth's crust. It is just slightly less reactive than the active metals.The IIA family is made up of the alkaline earth metals. All these elements tend to lose two electrons. Calcium (Ca) is an important member of the IIA family (you need calcium for healthy teeth and bones). ... These electron configurations show that there are some similarities among each group of elements in terms of their valence electrons.The Group 6A elements have six valence electrons in their highest-energy orbitals (ns 2 np 4). This is only two electrons away from having a full octet of eight electrons, so many of these elements form anions having -2 charges: oxide, O 2-; sulfide, S 2-, selenide, Se 2-, etc. In combination with other nonmetals, oxygen, sulfur, and selenium ...This online quiz is called Group IA and Group IIA elements valences. Language. English ...Periodic Table of the Elements Period Group** 1 IA 1A 18 V IIIA 8A 1 1 H 1.008 2 IIA 2A 13 IIIA 3A 14 IVA 4A 15 VA 5A 16 VIA VIIA 6A 17 7A 2 He 4.003 2 3 Li 6.941 4 Be 9.012 5 B 10.81 6 C 12.01 7 N 14.01 8 O 16.00 9 F 19.00 10 Ne 20.18 3 11 Na 22.99 12 Mg 24.31 3 IIIB 3B 4 IVB 4B 5 VB 5B 6 VIB 6B 7 VIIB 7BA carbonylation process for the preparation of carboxylic acid esters is described wherein carbon monoxide is contacted with at least one alcohol in the presence of a catalyst system having the general formula:B.sub.x Me[Me'(CO).sub.a (L).sub.b ].sub.2and a cocatalyst comprising halogen containing compounds in a cocatalyst to catalyst molar ratio ranging from about 1 to about 16, wherein B is ... • Defines TA as an individual or group selected for influence. • Describes information operations (IO) as the integrated employment, during military operations, of IRCs in concert wi th other lines of opera tion, to influence, disrupt, corrupt, or usurp the decision making of adversaries and potential adversaries while protecting our own. Group: 13 Period: 5 Atomic number: 49 Atomic mass: 114.818 u Configuration: [Kr] 4d105s25p1 Atomic radius: 156 пм Covalent radius: 142 пм Electron affinity: 28.9 eV Ionization energy: 5.7864 eV Electronic term: 2P1/2 Mass fraction in the earth crust: 1.6e-07 Mass fraction in space: 3e-10 Electronegativity: 1.78Elements of Group IA and Group IIA.Elements of Group 1A and 2A. Elements of Alkali and alkaline earth metals.elements in periodic table.group IA and IIA.The elements in Group IIIA (B, Al, Ga, In, and Tl) can be divided into three classes. Boron is the only element in this group that is not a metal. It behaves like a semimetal or even a nonmetal. Aluminum is the third most abundant element in the earth's crust. It is just slightly less reactive than the active metals.Construct mind maps with your students to describe and compare the properties of group 2 elements and their compounds in this lesson plan for 16-18 year olds. In this activity, students make a mind map to review the properties of the elements magnesium, calcium, strontium and barium and their compounds. They then use peer assessment to check ...Main Group. The main group elements of the periodic table are those elements that belong to the "s" and "p" blocks. Counting the columns or table groups across the table ignoring the transition elements gives 8 element groups which match the filling of the eight spaces for electrons in the ns and np subshells, ns2np6. 2.1. 1.9. Some of the trends in the modern periodic table with respect to group 15 elements of the p-Block elements are discussed below. 1. Electronic Configuration. The valence shell electronic configuration plays a major role in how an element behaves. The valence electron shell configuration of group 15 elements is ns 2 np 3.electra women's cruiserlg smart tv espn appjeremiah 32 kjv Which of the following Group 2 (IIA) elements has the most metallic character? A. Be B. Ca C. Mg D. Ba 28. Element X is in Group 2 (IIA) and element Y is in Group 17 (VIIA). A compound formed between these two elements is most likely to have the formula A. X2Y B. XY2 C. X2Y7 D. X7Y2 29. The atoms of which element in Group 16 (VIA)Coatings of Group IIA metals and compounds thereof are formed by chemical vapor deposition, in which a heat decomposable organometallic compound of the formula (I) ##STR1## where M is a Group IIA metal, preferably magnesium, calcium, strontium, or barium and R is a lower alkyl or alkenyl radical containing from 2 to about 6 carbon atoms, with a heated substrate which is above the decomposition ...The elements in Group 2 of the periodic table are called the alkaline earth elements. Like the elements in Group 1 (the alkali metals), the elements in Group 2 are chemically active and are never found in nature in the elemental state. Like all members of a group, or family, the elements in Group 2 share certain common characteristics.Elements of group 2 of the periodic table are called alkaline earth metals. They are Be, Mg, Ca, Sr, Ba and Ra. Their valence shell configuration is ns 2. ... This is explained by the polarizing ability of group IIA metal ions. Smaller the cation, greater the ability to polarize the anion. Hence the polarising ability of the Group IIA ions ...Silvery metals. Higher melting and boiling points than Group I elements. Less reactive than Group I elements. This is because it is more difficult to lose two electrons compared to losing just one electron. React with water to form alkaline solutions. Reactivity increases down the group. This is because the smaller the atom the closer the outer ...Hereof, which element is in Group 2 IIA and Period 7? The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). Chemical. Subsequently, question is, what elements in Period 2 are metals?ATOMIC STRUCTURE 3.3 - Arrangement of Electrons 3.3.2 - The Lewis Electron-Dot Symbols of Elements . Gilbert N Lewis is widely known for his use of simple symbolic representations of elements that show valence electrons as dots. You've seen what the Bohr diagrams for the first 20 elements. Sometimes it is more convenient to represent the elements by its Lewis electron-dot symbol.Group IA s-block elements have one electron whereas Group IIA elements have two electrons. Due to the difference in the outermost shell electronic configuration, the valency of Group IA elements is monovalent and Group IIA is divalent. Also, the elements of Group one are soft and have a low melting point.Diffusion in systems involving elements of the groups IA, IIA, IIIB, IVB, VB, VIB, and VIIB ... Diffusion in systems involving elements of group VIII Journal of Physical and Chemical Reference Data 5, 103 (1976); https:// ... copper and element M, including diffusion of Cu in M or in any binary, ternary or multicomponent ...The diagonal relationship exists because of how different atomic properties vary between groups and periods in the periodic table. Due to the polarizing power of the diagonally placed elements, the polarizing power increases due to the increase in charge of the ions, whereas the ionic size decreases. On moving down the group, the ionic size ...Jun 23, 2020 · The elements in Group IIA (Be, Mg, Ca, Sr, Ba and Ra) are all metals, and all but Be and Mg are active metals. These elements are often called the alkaline-earth metals. The term alkaline reflects the fact that many compounds of these metals are basic or alkaline. Click to see full answer. The Roman numerals on a periodic table of elements define the chemical group of the elements in that column and identify the number of valence electrons of each element. Group IA elements have one valence electron; group IIA elements have two valence electrons and so forth. Since each element within a group has the same number of valence ...Group IIA: Mg and Ca (alkaline-earth) metals. From your observation, which elements in Group IIA is more reactive. Explain based on your observations. Group IIIA: Al. From your data, arrange the three periodic groups in order of increasing reactivity with cold water (least reactive listed first) ...Group 4A consists of Carbon (C), Silicon (Si), Germanium (Ge), Tin (Sn), and Lead (Pb) and is located on the middle-right of the periodic table. All of these elements are solids at room ...Group 12, by modern IUPAC numbering, is a group of chemical elements in the periodic table.It includes zinc (Zn), cadmium (Cd) and mercury (Hg). The further inclusion of copernicium (Cn) in group 12 is supported by recent experiments on individual copernicium atoms. Formerly this group was named IIB (pronounced as "group two B", as the "II" is a Roman numeral) by CAS and old IUPAC system.Sep 19, 2018 · The elements in group 13 and group 15 form a cation with a -3 charge each. And elements in group 14 have a charge of -4. Elements in group 16 have a charge of -2, while all the elements of group 17 are halogens with a charge of -1 each. Alkali Metals: Group 1 . Here is the full list of metals in group one (+1 charge): Lithium (Li). Sodium (Na). comiket 99 merch Jun 27, 2012 · The alkaline earth metals are a series of elements comprising Group 2 (IUPAC style) (Group IIA) of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and... Diffusion in systems involving elements of the groups IA, IIA, IIIB, IVB, VB, VIB, and VIIB ... Diffusion in systems involving elements of group VIII Journal of Physical and Chemical Reference Data 5, 103 (1976); https:// ... copper and element M, including diffusion of Cu in M or in any binary, ternary or multicomponent ...Sep 19, 2018 · The elements in group 13 and group 15 form a cation with a -3 charge each. And elements in group 14 have a charge of -4. Elements in group 16 have a charge of -2, while all the elements of group 17 are halogens with a charge of -1 each. Alkali Metals: Group 1 . Here is the full list of metals in group one (+1 charge): Lithium (Li). Sodium (Na). What are the elements in Group IIA on the periodic table? Group IIA, the alkaline earth metals, contains: beryllium, magnesium, calcium, strontium, barium,and radium. How do IA and IIA differ the...Group. See About the Periodic Table for information on how Group can be used to characterize an element. Group 1: alkali metals, or lithium family. Group 2: alkaline earth metals, or beryllium family. Group 3: the scandium family. Group 4: the titanium family. Group 5: the vanadium family. Group 6: the chromium family. To better understand the functions of group IIa GhWRKYs in cotton, GhWRKY17 (KF669857) was isolated from upland cotton, and its sequence alignment, promoter cis-acting elements and subcellular localization were characterized.The elements in Group IIIA (B, Al, Ga, In, and Tl) can be divided into three classes. Boron is the only element in this group that is not a metal. It behaves like a semimetal or even a nonmetal. Aluminum is the third most abundant element in the earth's crust. It is just slightly less reactive than the active [email protected]{osti_68473, title = {Thermodynamic properties of the Group 1A elements}, author = {Alcock, C B and Itkin, V P and Chase, M W}, abstractNote = {This review describes thermodynamic properties of condensed phases of the alkali metals, excluding francium for which the amount of information is too limited. The properties considered are: heat capacities from 0 to 1600 K, temperatures and ...The WRKY transcription factors (TFs) participate in various physiological, growth and developmental processes of plants. In our study, a total of 79 WRKY family members were identified and classified into three groups (Group I, Group IIa–e, and Group III) based on phylogenetic and conservative domain analyses. Conserved motif analysis showed that seven WRKYGQK domains changed. The ... Jul 29, 2020 · The new model, unveiled July 20, was the culmination of a robust effort that began last year, headed by a core working group of governance experts and led by IIA Senior Vice Chair Jenitha John. The working group relied upon the vast experiences of an additional 30-member advisory group, as well as public comments. All contents copyrighted © 2006What are the elements in Group IIA on the periodic table? Group IIA, the alkaline earth metals, contains: beryllium, magnesium, calcium, strontium, barium,and radium. How do IA and IIA differ the...Materials containing group IIA and IIIB elements (e.g. MgO and La2O3) have been of specific interest for BE n-type field effect transistor (n-FETs) devices (1-4), while Al2O3 (5) and TiO2 capping layers have been investigated as viable p-type field effect transistor (p-FET) options. With increasing reports of cap incorporation within high-κ ...Periodic Trends in the Oxidation States of Elements. 1. Variation Of Oxidation State Along a Period. While moving left to right across a period, the number of valence electrons of elements increases and varies between 1 to 8. But the valency of elements, when combined with H or O first, increases from 1 to 4 and then it reduces to zero.Request PDF | Positron scattering studies of different inelastic channels for group IIA elements | This article reports the study of various inelastic channels such as positronium formation and ...Group 1 and which elements are members of Group 2. Graph 3: Ionization Energy vs Atomic Number: Elements 3-20 ... Groups IA and IIA For elements of Group 1 (Alkali metals), make a graph of the energy required to remove the easiest electron (first ionization energy) as a function of atomic number. On the same graph make a second line to ...Elements in Group IIA (also known as Group 2, or the alkaline earth metals) have similar properties because they all have the same number of ____ (multiple choice) A. valence electrons B. electrons C. electrons needed to fill their octet D. electron shells saz2022 is waiting for your help. Add your answer and earn points.Some of these groups have special names. The elements in group IA are called the alkali metals. The elements in group IIA are called the alkaline earth metals. elements in group VIIIA are called the noble gases orthe inert gases. The metals in group IB (copper, silver and gold) are sometimes called the coinage metals. The columnslinus kids bikecuisinart jar The thermodynamic properties of the alkaline earth metals in the condensed state have been critically reassessed, and recommended valued for all of the relevant thermodynamic properties are given. These values are compared with those published in recent reviews by the staff at the Institute for High Temperatures (Moscow) and the National Bureau of Standards (Washington, DC), and the reasons ...Periodic Properties: Solubilities of Salts of Group 2A Elements. Purpose: By measuring the solubilities of certain salts of Group 2A elements, the periodic variation of solubility of compounds can be assessed. These trends can then be used to predict the solubility of an unknown Group 2A salt. Safety: Wear goggles at all times.Sub-shell closure, early p- and d-mixing and core-orthogonalization are identified as important adsorbate factors for the chemisorption bond. With respect to their chemisorption properties the group IIA elements can be classified as neutral atoms that are apt for polarization and charge transfer due to their low-lying p- and d-orbitals.Chemistry questions and answers. __1) What is the group name for elements of group IIA in the periodic table? a) Alkali metals b) Rare earth metals c) Transition metals d) Alkaline earth metals 2) What is the percentage of H in water? a) 8.89% b) 11.11% c) 88.89% d) 16% 3) Molar mass of ammoniumsulfate in nearest whole number is a) 342g b) 123g ...Periodic Table of Elements. Powered by Create your own unique website with customizable templates. Get Started ...General physical properties of Group 1 elements: Alkali metals are grey solids with shiny silvery surfaces when freshly cut. These surfaces turn dull when exposed to air. This is because alkali metals are very reactive. They react rapidly with oxygen and water vapour in the air when exposed. Alkali metals are soft solids and can be easily cut.The Group 6A elements have six valence electrons in their highest-energy orbitals (ns 2 np 4). This is only two electrons away from having a full octet of eight electrons, so many of these elements form anions having -2 charges: oxide, O 2-; sulfide, S 2-, selenide, Se 2-, etc. In combination with other nonmetals, oxygen, sulfur, and selenium ...yLithium carbonate, fluoride, hydroxide, and phosphate are much less water soluble than those of other alkali metals. yLithium is the only alkali metal that forms a nitride (Li 3 N). yWhen it burns in air, lithium forms a normal oxide (Li 2 O) rather than a peroxide or a superoxide. yLithium carbonate and lithium hydroxide decompose to formWhich of the following Group 2 (IIA) elements has the most metallic character? A. Be B. Ca C. Mg D. Ba 28. Element X is in Group 2 (IIA) and element Y is in Group 17 (VIIA). A compound formed between these two elements is most likely to have the formula A. X2Y B. XY2 C. X2Y7 D. X7Y2 29. The atoms of which element in Group 16 (VIA)Which of the following Group 2 (IIA) elements has the most metallic character? A. Be B. Ca C. Mg D. Ba 28. Element X is in Group 2 (IIA) and element Y is in Group 17 (VIIA). A compound formed between these two elements is most likely to have the formula A. X2Y B. XY2 C. X2Y7 D. X7Y2 29. The atoms of which element in Group 16 (VIA)Which of the following Group 2 (IIA) elements has the most metallic character? A. Be B. Ca C. Mg D. Ba 28. Element X is in Group 2 (IIA) and element Y is in Group 17 (VIIA). A compound formed between these two elements is most likely to have the formula A. X2Y B. XY2 C. X2Y7 D. X7Y2 29. The atoms of which element in Group 16 (VIA)11. What is the only charge common to group IA elements? Answer +1 12. What is the only charge common to group IIA elements? Answer +2 13. What type of electrons, "s," "p," "d," or "f," are involved in ion formation of group IA and group IIA elements? Answer "s" 14. What does carbon, C #6, group IVA, form either +4 or -4 ions?Answer (1 of 9): The group of elements whose have two valence electrons is 2nd. This group is also known as alkaline earth metals.2014 nissan altima bose sound systemediths fdlmercedes slk battery drain2014 f150 transmission shifting hardfunny roadman sentences L4a