Question

Atomic radius goes on increasing down a group in morden periodic table

Answer 1

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atomic radius increases on going down the group because the electron affinity charge decreases...

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Answer 2

Answer:

1. As we move from top to bottom in a group, number of shells increases.
2. The outermost electrons go farther and farther from the nucleus, extending the radius and ultimately increasing the size of the atom even though the nuclear charge increases.

Hence, atomic radius goes on increasing down a group.

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