.
6
8
3
True
False
1s2 2s2 2p6 3s2 3p6 4s2 3d4
1s2 2s2 2p6 3s2 3p6 4s1 3d5
1s2 2s2 2p6 3s2 3p6 4s2 4d4
1s2 2s2 2p6 3s2 3p6 4s1 4d5
Sulfur
Oxygen
Aluminum
Sodium
Lithium
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