Question

The atom is one of the basic units of matter. Which part of the atom mostly determines the size of the atom?

Answer 1

Answer:

Atomic size is the distance from the nucleus to the valence shell where the valence electrons are located. The separation that occurs because electrons have the same charge. The number of protons in the nucleus. The core electrons in an atom interfere with the attraction of the nucleus for the outermost electrons.

Explanation:

Answer 2

That would be B I believe, but please correct me if I'm wrong.