Question

1.4 (6pts). What is the maximum number of electrons in a atom that can have the following set of quantum numbers? Note: if the space contains (--)no quantum number is assipmed t electrons m m 3 12 2 0

Answer 1

1)

For given n,

Number of electron = 2n^2

= 2*3^2

= 2*9

= 18

Answer: 18

2)

For n=4, l can be 0, 1 or 2

For l=0 and ml = 0, there are 2 electrons

For l=1 and ml = 0, there are 2 electrons

For l=2 and ml = 0, there are 2 electrons

So, there are total of 6 electrons ion n=4 and ml = 0

Answer: 6

3)

For given n and l,

Number of orbitals = (2l+1)

= 2*1+1

= 3

In these 3 orbitals, there will be 3 electrons with ms=+1/2 and 3 electrons with ms=-1/2

Answer: 3

4)

For given n and l,

Number of electrons = 2*(2l+1)

= 2*(2*0+1)

= 2*1

= 2

Answer: 2

5)

n, l and ml can represent only 1 orbitals.

It can have maximum of 2 elections

Answer: 2