Posted by jerson on Sunday, May 18, 2008 at 6:37pm.
Write both the complete electronconfiguration notation and the noblegas notation for each of the elements below
a. Na
b. Sr
c. P

chemistry  DrBob222, Sunday, May 18, 2008 at 7:46pm
You should know how to do this. If you have trouble. here is a site that may help. If you don't understand, post again but tell us what you don't understand.
www.webelements.com 
chemistry  GK, Sunday, May 18, 2008 at 7:48pm
Na: 1s^2, 2s^2, 2p^6, 3s^1 or,
Na: [Ne] 3s^1
Sr: 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^6, 5s^2 or,
Sr: [Kr] 5s^2
P: 1s^2, 2s^2, 2p^6, 3s^2, 3p^3 or,
P: [Ne] 3s^2, 3p^3 
chemistry  jerson, Sunday, May 18, 2008 at 9:48pm
thanks GK

chemistry  Anonymous, Monday, November 24, 2014 at 11:49pm
1s22s22p1

chemistry  sovit, Monday, November 30, 2015 at 6:36pm
Na: 1s^2, 2s^2, 2p^6, 3s^1 or,
Na: [Ne] 3s^1
Sr: 1s^2, 2s^2, 2p^6, 3s^2, 3p^6, 4s^2, 3d^10, 4p^6, 5s^2 or,
Sr: [Kr] 5s^2
P: 1s^2, 2s^2, 2p^6, 3s^2, 3p^3 or,
P: [Ne] 3s^2, 3p^3