Question

The position of three elements A,B And C in the periodic table is shown above:​

Answer 1

Answer:

(a) element A is a not metal as it is in halogens group(17). halogens group has all non-metals.

(b) Yes element C has a larger size than element A as element C has 3 shells and element A has 2 shells. The period tells us about the no. of shells.

(c) Yes element B has valency 1 as it is first group ( Akaline metals). All the group 1 elements gave valency 1.

Explanation:

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Answer 2

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