Question

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Answer 1

Here is your answer:

(a) Na and H

Be and Mg

(b) Na and H --> 1st group

Be and Mg --> 2nd group

(c) 1st group --> Li,K,Rb

2nd group--> Ca,Sr,Be

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Answer 2

Answer:(a). H and Na

Be and Mg

(B) group 1:- H and Na

Group 2:- Mg and Be

(C) group 1:- nickel and group 2 :- calcium

Explanation: