JEE Main · 2023 · 30 Jan 2023 · Shift 2 · Atomic Structure

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Maximum number of electrons that can be accommodated in shell with are:
  1. (A)16
  2. (B)32✓ Correct
  3. (C)50
  4. (D)72

Answer: (B)

Solution

A principal shell holds orbitals, and each orbital takes two electrons of opposite spin, so a shell accommodates at most electrons. For the fourth shell the subshells and offer places, which total . The greatest number of electrons that the shell with can hold is thus .

JEE Main · 2023 · 30 Jan 2023 · Shift 2 · Single correct option

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