What is the electronic configuration of nitrogen [Atomic number=7, Atomic mass=14]?
A
2,3
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B
2,5
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C
2,2
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D
7
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Solution
The correct option is D2,5 The number of electrons of nitrogen is 7. K shell can accommodate 2 electrons, L shell can accommodate the remaining 5 electrons. Hence, the electronic configuration is 2,5.