Question

What is the relationship between the atomic numbers and ionic radii of the
elements in the periodic table?

Answer 1

The atomic number is the number of protons + electrons in our element

Answer 2

atomic number is only the number of protons, atomic mass is the mass of protons and neutrons

Answer 3

Long explanation here.

ionic radius is the radius of an atom's ion. i'm guessing that as you go from left to right across a period, the atomic number goes up, more protons. if there are more protons, the electrons are going to be held more tightly by the nucleus Zeff and I would guess that this could make the atomic radius of the ion smaller.

My best guess is that
but the ionic radius, the radius of the ion probably depends on the type of ion you have.
if you have a metal like potassium, when it loses an electron, the result is K+, the + means that there are more protons than electrons so the ionic radius would be smaller because the electrons would be held more tightly by the nucleus.

if you had say chlorine Cl right? and it gained one electron to get Cl- the ionic radius would increase. so i think it depends on what ions you have.

Answer 4

Thank you so much. Also I have one more question, Why do these relationships exist? Propose an explanation for each of these relationships.