Arrage the elements in increasing atomic size: Mg2+, Mg, N, Al, C, Be, F, F-, P, Ne?

Question

Pls. help...

guys pls. help..It's our long test tom. so I need an answer to this.

Answer 1

ok i will try

Ne
F
F-
N
C
Be
P
MG+2
AL
Mg


if thats not true then do tell me what is

Answer 2

Ne,F-, F, N, C,Be,Mg++ P, Al, Mg,

You find explanation for neutral atom under and in the link
For ions F- has the same shell than Ne (so, i suppose ti is like Neon, and M has also the same shell than Neon, since it lost two electrons
I am quite sure for the elements but not for the ions


The first of these properties is the atomic size. You know that each atom has a nucleus inside and electrons zooming around outside the nucleus. It should seem reasonable that the size of an atom depends on how far away its outermost (valence) electrons are from the nucleus. If they are very close to the nucleus, the atom will be very small. If they are far away, the atom will be quite a bit larger. So the atomic size is determined by how much space the electrons take up.