two elements A and B belong to group 1 and 2 respectively in the same period. compare them with respect to:
a) no. of valence electron
b) valency
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two elements A and B belong to group 1 and 2 respectively in the same period. compare them with respect to:
a) no. of valence electron
b) valency
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(A)Lethium &(B) beryllium are those elements who belong to group 1 & 2 ,in the same period.
1) no. Of valence electrons
i) lethium= 1
ii) beryllium = 2
2) Valency
i) lethium= 1
ii) beryllium = 2