Why is the sequenceof energy levels for lithium, beryllium, boron carbon and nitrogen different from that of oxygen and fluorine.

Asked by yasho1710 | 6th Sep, 2010, 12:00: AM

Expert Answer:

Li - K,L - 2,1
Be K,L- 2,2
B - K, L- 2,3
C - K,L- 2,4
O - K,L- 2,6

Answered by  | 6th Sep, 2010, 11:47: AM

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