Question

the atom having a smaller size in the list below sodium chlorine Silicon ,argon​

Answer 1

Answer:

Explanation:

If electrons are added to the atom, the ion becomes larger. The ionic radius for an atom is measured in a crystal lattice , requiring a solid form for the compound. ... When the valence electron(s) are removed, the resulting ion has one fewer occupied principal energy level, so the electron cloud that remains is smaller.

Answer 2

Answer:

argon is the correct answer