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a. 2+8+2=12
b. 2nd because it's velancy is 2
c. 3rd because there are 3 shells
d. Be(4) because it's electronic configuration is (2,2).
b. 2nd because it's velancy is 2
c. 3rd because there are 3 shells
d. Be(4) because it's electronic configuration is (2,2).
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3 a) 12
b) alkaline metal or 2 group
c) 3
d)cl
b) alkaline metal or 2 group
c) 3
d)cl
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