Chemistry · Periodic Classification
Among the following, which one represents the electronic configuration of an inert (noble) gas element?
- 11s2 2s2 2p6 3s2 3p6 4s1
- 21s2 2s2 2p5
- 31s2 2s2 2p6 3s2 3p6✓
- 41s2 2s1
Correct answer
1s2 2s2 2p6 3s2 3p6
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