Question

8. Which of the following remains constant while moving down the group of the periodic table? *

(a) Atomic radius

(b) Metallic character

(c) Number of shells in the atom

(d) Valence electrons

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Answer 1

Answer:

As one move down the group , the valence electrons remains constant.

Explanation:

1. Atomic radius increases as one move down the group. Because of the addition if shells.
2. Metallic character also vary down the group.
3. Number of shells increase down the group.

So the only option that remains constant is Valence electrons.

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Answer 2

Answer: (c) Valence .

Explanation: Elements of the same group have the same number of valence electrons; hence, valency will remain the same. All the remaining three properties increase down the group.

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