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Two values of spin quantum number i.e., ...

Two values of spin quantum number i.e., +1/2 and -1/2 represent

A

up and down spin of the electrons respectively

B

two quantum mechanical spin states which refer to the orientation of spin of the electron

C

clockwise and anti-clockwise spin of the electrons respectively

D

anti-clockwise and clockwise spin of the electrons respectively.

Text Solution

Verified by Experts

The correct Answer is:
B
Spin angular momentum of the electron, a vector quantity can have two orientations relative to the chosen axis. These two orientations take the values of `+1//2` or `-1//2` and are called two spin states of the electrons.
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Knowledge Check

  • The value of spin quantum number is-

    A
    `pm(1)/(4)`
    B
    `pm(1)/(3)`
    C
    `pm (1)/(2)`
    D
    None of these

  • Who discovered spin quantum number

    A
    Unlenbeck and Goudsmit
    B
    Nell’s Bohr
    C
    Zeeman
    D
    Sommerfield

  • The quantum numbers n = 2, 1 = 1 represent.

    A
    `1 s` obital
    B
    `2 s` orbital
    C
    `2 p` orbital
    D
    `3 d` orbital

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