Rank these ions according to ionic radius from least to greatest.

Rb+
Se^2-
Br-
Sr^2+
As^3-

I understand as you move left then down they get bigger, but I don't understand how the numbers and charge affect that.

Question

Rank these ions according to ionic radius from least to greatest.

Rb+
Se^2-
Br-
Sr^2+
As^3-

I understand as you move left then down they get bigger, but I don't understand how the numbers and charge affect that.

unklerhaukus · Answer

as you move to the right on the periodic table the ions get smaller 
(i know this is counter intuitive; but conciser extra protons will pull all the electrons closer )

unklerhaukus · Answer

$$A^{3-},Sr^{2+}, Rb^{+}, Br^-, Se^{2-}$$

unklerhaukus · Answer

A* $$As^{3-}$$

vane11 · Answer

that's wrong =/ just letting anyone who drops by on this Q

unklerhaukus · Answer

oh

vane11 · Answer

sorry!! haha I tried it in my hw and it was wrong, I forgot what the answer was but it was like one off