Question

25. An element X belongs to 3rd period and group 2 the period table. State
a) The number of valency b) Whether it is metal or a nonmetal
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Answer 1

Explanation:

Solution. (a) The element X has 2 valence electrons because it belongs to group 2. (b) Since the number of valence electrons and the valency of group 2 elements is 2, the valency of element X is 2.

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Answer 2

Answer:

(a) The element X has 2 valence electrons because it belongs to group 2. (b) Since the number of valence electrons and the valency of group 2 elements is 2, the valency of element X is 2.

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