# Physics/Chemistry

posted by .

The following combinations of quantam numbers are not allowerd

1. n=3 l=0 m=-1

2. n=4 l=4 m=0

Can someone explain to me why the second one is not allowed.

Also check my explaination for the first one.

If L=0 then m also has to also =0

The s subshell (ℓ = 0) contains only one orbital, and therefore the mℓ of an electron in an s subshell will always be 0.

• Physics/Chemistry -

The l (orbital angular momentum) quantum number cannot exceed n-1.

Your explanation for to the first "no" is correct.

• Physics/Chemistry -

And what about the second one, can you explain that to me?

## Similar Questions

3x^2+17x+10 *You have to factor completley but I don't know how too.Please help.! (3x+2 )(x + 5) Factoring asks this question: what two factors of 10 add to 17 when one is multiplied by three?
2. ### algebra

Find the two consecutive odd integers such that 5 times the first integer is 12 more than 3 times the second. can some explain to me how to get this i was thinking the formula would be ' 5x+12=3x No, that's not it. The second integer …
3. ### Chemistry

Electron Transfer Theory Write an label the oxidation and reduction half-reaction equations. a) Ni(s) + Cu(NO3)2(aq) -> Cu(s)+ Ni(No3)2(aq) oxidation - Ni(s) -> Ni2+(aq) + 2e- reduction - Cu2+(aq) + 2e- -> Cu(s) b) Pb(s) + …
4. ### Chemistry

Electron Transfer Theory Write an label the oxidation and reduction half-reaction equations. a) Ni(s) + Cu(NO3)2(aq) -> Cu(s)+ Ni(No3)2(aq) oxidation - Ni(s) -> Ni2+(aq) + 2e- reduction - Cu2+(aq) + 2e- -> Cu(s) b) Pb(s) + …
5. ### chemistry

Are the following quantum number combinations allowed?
6. ### chemistry

write the corresponding subshell leters for the combinations given. Fill in the possible number of electrons for these subshells. 1) n=1 2) l value=0 3) l letter?
7. ### Math

Hi! Can someone check my answers? Thanks!! Directions: Tell whether the following questions are either permutations or combinations. 1.) Number of ways the Junior class can elect a committee of officers - President, Vice President,
8. ### Math

Hi! Can someone check my answers? Thanks!! Directions: Tell whether the following questions are either permutations or combinations. 1.) Number of ways the Junior class can elect a committee of officers - President, Vice President,
9. ### Math Check Pleas Thank You

1. Which of the following numbers is an example of an integer?
10. ### Statistics

Can someone please explain this to be, so that I can understand this problem?

More Similar Questions