How many energy levels does an atom of oxygen have
Asked by admin @ in English viewed by 312 People
Is the second energy level of the oxygen atom full? Explain
Answered by admin @
No it isn’t because the atomic number of oxygen is 8.
Electronic configuration-
2,6 (=8)
The total electrons that can be accommodated is 8 in the second shell. There are 2 empty spaces.
Hence it is not full.
(And the valency therefore is 2)
Extra info:
According to the electronic configuration rules, the first energy level will have 2, then 8, 18, 32 and so on, but the electrons in the outmost energy level can only be till 8.
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