Question

b. Atomic radius goes on increasing down a group​

Answer 1

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The number of energy levels increases as you move down a group as the number of electrons increases. ... Therefore, the atomic radius increases as the group and energy levels increase

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Answer 2

Answer:

Explanation:

(i) Atomic radius is the distance between the centre

of the atom to its outermost shell.

(ii) New shells are added to the atoms of the elements

as we go down from top to bottom in a group.

(iii) The outermost electrons go further and further

away from the nucleus, extending the radius and

ultimately increase in the size of the atom. Hence,

atomic radius goes on increasing down a group.