An element has a total of 7 electrons. Which answer choice(s) are the best for the...
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Problem
An element has a total of 7 electrons. Which answer choice(s) are the best for the ground state electron configuration?
Step-by-step solution
The element has 7 electrons. The ground state electron configuration follows Hund's rule and the Aufbau principle. The configuration is 1s^2 2s^2 2p^3.
Answer
1s^2 2s^2 2p^3