Presence of 3 unpaired electrons in nitrogen can be explained by ____ principle.
- Aufbau
- Pauli
- Hund
- Bohr
The Correct Option is C
Solution and Explanation
Hund’s Rule states that electrons will fill degenerate orbitals (orbitals of the same energy) singly before pairing up. This explains why nitrogen has 3 unpaired electrons in its 2p-orbitals, as the 2p orbitals are degenerate and Hund’s rule applies.
Thus, the correct answer is Hund.
Top Questions on Quantum Mechanical Model of Atom
Given below are two statements:
- JEE Main - 2025
- Chemistry
- Quantum Mechanical Model of Atom
- In a multielectron atom, which of the following orbitals described by three quantum numbers will have the same energy in absence of electric and magnetic fields?
A. \( n = 1, l = 0, m_l = 0 \)
B. \( n = 2, l = 0, m_l = 0 \)
C. \( n = 2, l = 1, m_l = 1 \)
D. \( n = 3, l = 2, m_l = 1 \)
E. \( n = 3, l = 2, m_l = 0 \)
Choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
- Quantum Mechanical Model of Atom
Given below are two statements:
In light of the above statements, choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
- Quantum Mechanical Model of Atom
The product (P) formed in the following reaction is:
- JEE Main - 2025
- Chemistry
- Quantum Mechanical Model of Atom
In a multielectron atom, which of the following orbitals described by three quantum numbers will have the same energy in absence of electric and magnetic fields?
A. \( n = 1, l = 0, m_l = 0 \)
B. \( n = 2, l = 0, m_l = 0 \)
C. \( n = 2, l = 1, m_l = 1 \)
D. \( n = 3, l = 2, m_l = 1 \)
E. \( n = 3, l = 2, m_l = 0 \)
Choose the correct answer from the options given below:- JEE Main - 2025
- Chemistry
- Quantum Mechanical Model of Atom
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