Multiple Choice
Which of the following is the correct electron configuration for sodium (Na)?
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10. Periodic Properties of the Elements
The Electron Configuration
Multiple Choice
Which of the following is the correct electron configuration for the N^{3-} anion?
A
1s^2 2s^2 2p^4
B
1s^2 2s^2 2p^3
C
1s^2 2s^2 2p^5
D
1s^2 2s^2 2p^6
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