Hey guys, this isn't really homework but will help me on the exam and the homework too. We are working in the book, where you just get to electron structure, orbitals, configurations, etc.(adsbygoogle = window.adsbygoogle || []).push({});

The part that I need help with is Quantum Numbers. My book has:

n(principal energy levels)

l(sublevels)

ml(Orbitals)

ms(Electron Spin)

I don't really understand this part, the book explains it very poorly. I understand Electron configuration(1s2s,2p,etc). If someone could help me relate this information, I'd be very grateful. I'm not sure how it all ties together.

Here is an example question(homework) that I don't understand completely.

How many electrons in an atom can have each of the following quantum number designations?

a. n=1, l=0, ml=0

b. n = 5, l=3, ml=+2

c. n=3, l=2

Thank you,

Brad

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Energy levels and quantum numbers

**Physics Forums | Science Articles, Homework Help, Discussion**