Question

electrons and the periodic table
quiz complete
1 2 3 4 5 6 7 8 9 10
the electron configuration of nitrogen (n) is
○ 1s²2s²2p³
○ 1s²2s²2p⁴
○ 1s²2s²2p⁵
○ 1s²2s²2p⁶

Explanation:

by Aufbau principle
Fill 1s first (holds 2 electrons): $1s^2$ (2 electrons used, 5 left)
Fill 2s next (holds 2 electrons): $2s^2$ (4 electrons used, 3 left)
Fill 2p (holds 6 electrons, use remaining 3): $2p^3$

Step3: Combine orbitals

Combine the filled orbitals: $1s^22s^22p^3$

Answer:

by Aufbau principle
Fill 1s first (holds 2 electrons): $1s^2$ (2 electrons used, 5 left)
Fill 2s next (holds 2 electrons): $2s^2$ (4 electrons used, 3 left)
Fill 2p (holds 6 electrons, use remaining 3): $2p^3$

Step3: Combine orbitals

Combine the filled orbitals: $1s^22s^22p^3$