객관식
Which of the following is the correct electron configuration for neon (Ne)?
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10. Periodic Properties of the Elements
The Electron Configuration
객관식
Which of the following is the correct electron configuration for a nitrogen atom?
A
1s^2 2s^2 2p^6
B
1s^2 2s^2 2p^3
C
1s^2 2s^1 2p^4
D
1s^2 2s^2 2p^5
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검증된 단계별 안내1
Step 1: Identify the atomic number of nitrogen, which is 7. This means a neutral nitrogen atom has 7 electrons.
Step 2: Recall the order in which electron orbitals are filled according to the Aufbau principle: 1s, 2s, then 2p.
Step 3: Fill the 1s orbital first with 2 electrons: \$1s^2$.
Step 4: Next, fill the 2s orbital with 2 electrons: \$2s^2$.
Step 5: Distribute the remaining 3 electrons in the 2p orbitals, giving \$2p^3$. So, the full electron configuration is \$1s^2 2s^2 2p^3$.
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