Which of the following does not follow the Au | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The Aufbau principle states that electrons fill orbitals in order of increasing energy. Option $A$ represents a valid configuration for $N$ or $O$

Vedclass · Accepted Answer

Vedclass · Answer

(B) The Aufbau principle states that electrons fill orbitals in order of increasing energy. Option $A$ represents a valid configuration for $N$ or $O$ (depending on total electrons). Option $B$ violates the Aufbau principle because the $2s$ orbital is only half-filled while the $2p$ orbitals are already being filled,which is energetically unfavorable compared to filling the $2s$ orbital completely first. Option $C$ represents the ground state of Nitrogen $(1s^2 2s^2 2p^3)$. Option $D$ represents the ground state of Fluorine $(1s^2 2s^2 2p^5)$. Therefore,option $B$ is the correct answer.

Which of the following does not follow the Aufbau principle?

Similar Questions

Which of the following $d$-orbitals has a different shape compared to the others?

What is the difference between $2p_x, 2p_y,$ and $2p_z$ orbitals?

The ground state electronic configuration of a nitrogen atom $(Z = 7)$ can be represented by which of the following orbital diagrams?

Explain the energy order of orbitals in multielectron atoms.

The number of unpaired electrons in a carbon atom in the excited state is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module