Question

a) If an atom has an electron in the n=3 state with m=1, what are the possible values of l, the angular momentum quantum number?

b)What are the possible values of m for an electron in the n=3 state?

Answer 1

There are four quantum numbers .

1. Principal Quantum Number ( n )

it represents  the SHELL of an electron , K L M N ...

can have values 1 , 2 , 3 , ....

2.Angular Momentum ( Azimuthal) Quantum Number ( )

it represents the sub shell of the electron , s p d f ...

can have values 0 to (n-1) where n is the principal quantum number.

3.Magnetic Quantum Number (m)

it represents the orientation in space of the electron

can have values  

4. spin quantum number (s)

it represents the orientation in spin axis

can have values

a) here

and

values

for

for

for   

here

when

answer is if n is 3 and m is 1 then l can have values 1 and 2

b)

if

hope this helps , regards