Maximum numbers of electrons in a sub-shell is given by:
Correct answer: B. 2(21+1)
- A. 2(2/-1)
- B. 2(21+1)
- C. 2(/+1)
- D. 2/+1
Explanation
Option B is correct.The maximum number of electrons in a subshell is given by 2(2l + 1). This formula is based on the Pauli exclusion principle, which states that no two electrons in an atom can have the same four quantum numbers. The four quantum numbers are the principal quantum number (n), the angular momentum quantum number (l), the magnetic quantum number (ml), and the spin quantum number (ms). The angular momentum quantum number (l) determines the shape of the orbital, and it can have values from 0 to n - 1. The maximum number of electrons in a subshell is therefore 2(2l + 1), where l is the angular momentum quantum number. No. of orbitals in a subshell = (2ℓ +1)No. of electrons in a subshell = 2(2ℓ +I)
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