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14 November, 16:07

Elements in group 2 are all called alkaline earth metals. What is most similar about the alkaline earth metals? how many protons and neutrons they have which chemical properties they have how many total electrons they have which period they are most often found in

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  1. 14 November, 17:40
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    1. Protons (p) and neutrons (n) : Be 4p and 5n, Mg 12p and 12n, Ca 20p and 20n, Sr 38p and 50n, Ba 56p and 81n and Pa 88p and 138n. They react with hydrogen to form metallic hydrides, with oxygen to form oxides and react with halogens to form metallic halides. All elements in Group 2 have two electrons in their valence shells.
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