Question

consider the model of the nitrogen atom. which electron configuration matches this model? 1s²2s²2p² 1s²2s²2p³ 1s²2s²2p⁴ 1s²2s²2p⁵

Explanation:

Step1: Count the number of electrons

The atomic number of nitrogen is 7, so it has 7 electrons.

Step2: Analyze each electron - configuration option

• For \(1s^{2}2s^{2}2p^{2}\), the total number of electrons is \(2 + 2+2=6\).
• For \(1s^{2}2s^{2}2p^{3}\), the total number of electrons is \(2 + 2 + 3=7\).
• For \(1s^{2}2s^{2}2p^{4}\), the total number of electrons is \(2+2 + 4=8\).
• For \(1s^{2}2s^{2}2p^{5}\), the total number of electrons is \(2+2 + 5=9\).

Answer:

\(1s^{2}2s^{2}2p^{3}\)