The quantum number `+ 1//2` and `-1//2` for the electron spin represent

Options

A. Rotation of the electron in clockwise and anticlockwise direction respectively.
B. Rotation of the electron in anticlockwise and clockwise direction respectively.
C. Magnetic moment of the electron pointing up down respectively
D. Two quantum mechanical spin states ehich have no classical analogue.

Answer

D

Explanation

Change in mass number `=32`
Change in proton `=10`
`8alpha` means `8_(2)He^(4)` i.e., `32` mass number, `16` protons.
Now `6beta=6` neutrons changed to `6` proton.
So, net change in proton `=10`
Answer is `8 alpha, 6beta`