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NEET CHEMISTRYStructure of AtomEasy

Question

Maximum number of electrons in a subshell of an atom can be determined by which of the following formula:

A

4l + 2

B

2l + 1

C

4l - 2

D

2n^2

Step-by-Step Solution

The capacity of a subshell to hold electrons is determined by the azimuthal quantum number (ll).

  1. Number of Orbitals: The number of orbitals in a given subshell is given by the formula (2l+1)(2l + 1).
  2. Electrons per Orbital: According to the Pauli Exclusion Principle, each orbital can accommodate a maximum of 2 electrons with opposite spins.
  3. Calculation: Max Electrons=2×(Number of Orbitals)\text{Max Electrons} = 2 \times (\text{Number of Orbitals}) Max Electrons=2×(2l+1)=4l+2\text{Max Electrons} = 2 \times (2l + 1) = 4l + 2

Evidence from Sources:

  • d-subshell (l=2l=2): Source confirms the dd subshell holds up to 10 electrons (4(2)+2=104(2) + 2 = 10).
  • f-subshell (l=3l=3): Source and confirm the ff subshell holds up to 14 electrons (4(3)+2=144(3) + 2 = 14).

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from Structure of Atom. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYStructure of Atommaximumnumberelectronssubshelldetermined

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