Page 19 - Electronic Configuration

Valence electronic configuration

Example :

1.Carbon – 6e

2
Electronic configuration : 1s 2s 2p 2
2
2
Valence electronic configuration : 2s 2p 2

2. Natrium – 11e

6
2
Electronic configuration : 1s 2s 2p 3s 1
2
Valence electronic configuration : 3s 1