Question

Be able to list the values of 4 quantum numbers associated with a designated orbital?

This is what my study guide for my chemistry final says, and I'm not sure what it means. Could you explain/ perhaps give me a sample question?

Answer 1

N = your principle quantum number this is associated with the energy of your orbital.

L = your shape l can be an integer greater than 1

Ml = the number of orientations from -l to positive l including 0

S = the spin of your orbital which is. +1/2 and -1/2 I think this corresponds to whether your electron is spin up or spin down.

Answer 2

Let's try a problem

Say you have

N = 1 l = 0 mL = 0 s = +1/2

Well first we know that l = 0 means that it's spherical. N = 1 means our lowest energy level. mL means one orientation of that orbital is available and the +1/2 means where our electron is I spin up.

That would be a 1 s orbit which would be a sphere.

Answer 3

FYI

Minimum energy requirement for your orbitals

S orbitals start at n =1

P orbitals start at n = 2

D orbitals at n = 3

f orbitals at n = 4

So in each orbital we have 2 electrons. I believe.

To find how many orbitals we have for each of those we know that each orbital must have 2 electrons.

S orbital = 2 electrons/2 = 1 orientations
P orbital = 6 electrons/2 = 3 orientations
D orbital = 10 electrons/2 = 5 "."
F orbital = 14 electrons/2 = 7 "."

Answer 4

So a p orbital starts at n = 2 and has 3 orientations Px PY and PZ each can hold 2 electrons for a maximum of 6 electrons.

Answer 5

Here's another practice question for you:

What are all the quantum numbers of the valence electrons on Nitrogen?