Question

Atomic radius goes on increasing down a group.​

Answer 1

Answer:

as we go down the group the number of electrons in the atom increases and more shells are required thus the shell increases by 1 as we go down the group this results the increase in the atomic radius...

or

Answer:

no,the atomic radius decreases when moving down a group as the no of protons increases and outer electrons are more attracted towards the centre .

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Answer 2

Answer:

i) Atomic radius is the distance between center to last cell.

ii) While down the group a new shell is added.

iii) Therefore, the distance between outermost electron and nucleus goes on

increasing.

iv) These electrons experience lesser pull from the nucleus.

v) Therefore atomic radius goes on increasing down a group.