Question

Why are atoms smaller ?​

Answer 1

Explanation:

With the increasing number of protons attracting the outer electrons and the same shielding from the core electrons, the valence electrons are pulled closer to the nucleus, making the atom smaller.

Answer 2

Answer:

With the increase number of protons attracting the outer electrons and the same shield from the core electrons, the Valence of electrons are pulled closer to the nucleus, making the atom smaller