what-is-the-primary-reason-for-the-general-increase-in-atomic-radius-as-you-desc

Question

What is the primary reason for the general increase in atomic radius as you descend a group among main-group elements?

Accepted Answer

The number of electron shell increases.

Answer

The size of the valence shell decreases.

Answer

The atomic stability increases, leading to expansion.

Answer

The nucleus of an atom decreases.