Question

spin magnetic momentum of electrons on an ion is 4.84BM. its total spin will be ?

Answer 1

Answer:

2 will be the total spin.

Explanation:

We know that the formulae of μ(magnetic moment) is √[n(n+2)] so the value of the n or the unpaired electrons so that the value of magnetic moment must be 4.89 and not 4.84 because 4.84 will give the value of n to be fractional which is not possible.

So, the value of n on solving will be 4 hence the the 3d orbital will have number of free electrons as 4. The spin of the atom is total unpaired electrons *1/2 which will be 2.

Answer 2

Answer:

± 2

Explanation:

Given Spin magnetic momentum of electrons on an ion is 4.84 BM. its total spin will be ?

We know that

       Spin magnetic momentum = √n(n + 2) BM

4.84 = √n(n + 2)

   n = 4

  Therefore total number of unpaired electrons e^- = 4

Now spin of each electron = ± 1/2

So total spin = ± 1/2 x 4

                      = ± 2