give electron configuration for a> Na

Question

b) Na+ c) O
d)O ^2-

Answer 1

the electron configuration for sodium is

11
Na
SODIUM
22.99 amu
1.0
+1
[Ne]
3s1

Answer 2

I imagine that the question is looking for the full electronic config. in each case.

So for Na
1s^2 2s^2 2p^6 3s^1