Multiple Choice
Which of the following is the correct electron configuration for neon (Ne)?
10. Periodic Properties of the Elements
The Electron Configuration
Multiple Choice
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
Verified step by step guidance1
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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