## Equations for Quantum Topics

$H_{\psi }=E_{\psi }$

1-D: $E_{TOTAL}\psi (x)=E_{k}\psi (x)+V(x)\psi(x)=-\frac{h^{2}}{8\pi ^{2}m}\frac{d^{2}\psi(x)}{dx^{2}}+V(x)\psi(x)$

Lizette Noriega 1H
Posts: 105
Joined: Wed Sep 18, 2019 12:15 am

### Equations for Quantum Topics

Hello,
I'm just looking for clarification on the equations that are currently being used in the material we are studying right now. So far, Lavelle has gone over three main equations: the de Broglie equation, Schrodinger's equation, and Heisenberg's indeterminacy equation. Are there any more essential functions or equations in addition to these? I feel like we've been covering a lot in lectures lately so I was to make sure I'm up to date. Thanks!

Qiu Ya Wu 4I
Posts: 107
Joined: Fri Sep 20, 2019 12:17 am

### Re: Equations for Quantum Topics

I think those 3 equations basically cover the fundamentals of quantum mechanics, but there are several other equations that form the intermediate steps of those equations such as c=λv, E=hv, E=pc, p=mv, E(n)=-hR/N^2, λ=h/p, and E(k)=1/2mv^2 that would be helpful to keep in mind.

205296774
Posts: 66
Joined: Thu Jul 25, 2019 12:15 am

### Re: Equations for Quantum Topics

I have all that plus the Quantum numbers and Atomic orbitals we went over today:

Principle Quantum # (n) - determines energy and size
Angular Quantum # (l) - describes shape
Magnetic Quantum # (Ml) - labels different orbitals of a sub-shell

and then the Spin Magnetic Quantum # (Ms = +1/2 -1/2)

Remember, these four quantum number's specify an atom and their spin state. No 2 electrons in the same atom have the same 4 quantum numbers.

sarahsalama2E
Posts: 164
Joined: Fri Aug 30, 2019 12:16 am

### Re: Equations for Quantum Topics

Remember that the magnetic quantum number (ml) is a set of possible values as it could be anywhere from -l to +l.