Calcium:
1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
Select an orbital to view:
Lowest energy level:
1s : 2 electrons
Second energy level:
2s : 2 electrons
2p : 6 electrons
Third energy level:
3s : 2 electrons
3p : 6 electrons
Fourth energy level:
4s : 2 electrons