The magnitude of the spin angular momentum for an electron is equal to
C) /2
D) ± /2

Name: The magnitude of the spin angular momentum for an electron is equal to C) /2 D) ± /2
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Question

The magnitude of the spin angular momentum for an electron is equal to
C) /2 
D) ± /2

Quizplus · Accepted Answer

The magnitude of the spin angular momentum for an electron is equal to √S(S+1)ħ, where S is the spin quantum number (which is equal to 1/2 for electrons) and ħ is the reduced Planck constant. Plugging in the values, we get √(1/2 * (1/2 + 1)) ħ = √3/2 ħ, which is option B.

The Magnitude of the Spin Angular Momentum for an Electron