Question

what are the types of quntom numbers....how many are there what are they..?

Answer 1

there are 4 types of quantum numbers
 
==principle quantum number-n
==angular momentum quantum number-l
==magnetic quantum number-ml
==spin quantum number-ms


hope this helps.

 

Answer 2

we can define quality of quantum as the solution of Schrödinger wave equation..

these are four :---

1) principal quantum number:-

it denotes the no. of shells or energy level of an electron in any orbit.

it is denoted by letter (n)

"n" can have any value from 1 to infinity.

n = 1,2,3........
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2) Azimuthal quantum number :-

=) Also know as angular quantum number.

** it denotes the number of sub-sells or orbital

it is denoted by (l)

=) the value of l is from 0 to (n-1)
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3) magnetic quantum number:-

=) it is denoted by (m)

=) it describes the shape , orientation of an orbital .

=) it's value ranging from -l to +l

where " l "is Azimuthal quantum number.
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4) spin quantum number:-

=) it is denoted by (s)

The Spin Quantum Number (s) is a value (of +1/2 or -1/2) that describes the angular momentum of an electron. An electron spins around an axis and has both angular momentum and orbital angular momentum.

*(s) has value ranging from -1/2 or +1/2

this value has no physical meaning but if you treat +1/2 upward spin then -1/2 become downward spin and vice versa.

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