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Quantum number area assigned to get co...

Quantum number area assigned to get complete inforamtion of electrons regarding their energy engular momentum ,spectral lines etc. Four quantum number are known i.e pricipal quantum numbers which tell the diatence shell and its angular momentum .Azimuthal and of courase shape of orbital , Magnetic qunatum number deals with syudy of orientations or deganeracy of a subshell . spin quantum number defines te spin of electrons designaated as `+(1)/(2) or-(1)/(2)` respresented by 123 and 123 respectively .
Electrons are filled in oritals and Hun's rule of maximum multicity .
spin angular momentum for unpaires electron in sodium (Atomic No =11 ) is :

A

`sqrt(3)/2`

B

`0.866 h//2pi`

C

`-sqrt(3)/2 h/(2pi)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`sqrt(s(s+1))h/(2pi)=sqrt(1/2(1/2+1))h/(2pi)=sqrt(3)/2h/(2pi)=0.866 h/(2pi)`
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Azimuthal quantum number defines.

The shape of orbital is determined by ………quantum number

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The set of quantum numbers not possible to an electron is

The quantum number which is related to the orbital angular momentum is

The quantum number which determines the shape of the orbital is

If m = magnetic quantum number and l = azimuthal quantum number then :-