-7 = 3s - 1
+1 +1 (add 1 to both sides to get the variable alone)
___ ____
-6 = 3s
__ ___ (-6 and 3s both divided by 3)
3 3
-2 = s
the abbreviated electron configuration of sodium is (Ne) 3s1
Yep!
Atoms of the element sodium (atomic number 11) have the electron configuration 1s22s22p63s1 with the noble gas form [Ne]3s1
3s1
1s22s22p63s1 or [Ne]3s1
[Ar] 3s1
[Ne]3s1
The orbitals and electrons that are of higher energy than those of the noble gas with the closest but lower atomic number. For example sodium full electronic configuration is 1s2, 2s2, 2p6, 3s1 The noble gas configuartion is [Ne] 3s1 and the outer electron configuration is 3s1
1s2 2s2 2p6 3s1
1s22s22p63s1 or [Ne]3s1
1s2 2s2 2p6 3s1
[Ne]3s1