I need to practice electron configurations. I'm starting my chemistry class in about a week but I've been trying to learn some things in advance. Can anyone help me? I just learned about elements in the s, p, and d shells (I think that's what they're called?) I also just learned about the f shells but I'd like to practice with the first three. Can anyone give me an element and tell me if I have the configuration right?

Question

wolfe8 · Answer

I would suggest this site for anything you can find: https://www.khanacademy.org/science/chemistry/orbitals-and-electrons/v/orbitals He should teach you everything you'll want to know for now. On the left side there are multiple videos.

anonymous · Answer

there is a formula 2n^2 this tells you the maximum number of electrons that each shell can acquire. Here 'n' is the number of shells like for the first shel it would be like:
2*1^2
2*1
2
so the first shell can hold a maximum of two electrons.

anonymous · Answer

there are many more things which even involve the periodic table you should refer to Cambridge Checkpoint Chemistry text book or Cambridge IGCSE Chemistry Second edition if you have access to them.

musicfreak · Answer

Ok so here is an element: Na.
Tell me the electron configuration for it (what shell it is in and how many orbitals it has filled or open).

anonymous · Answer

configuration for it would be 2,8,1
the element is not in any shell/orbit its electrons are. You sound like ur concepts aren't clear checkout some theory or some youtube tutorials.