From 2c9dda5a5051bef1e36f09fe04d9e293f89f8213 Mon Sep 17 00:00:00 2001 From: eggy Date: Sat, 31 Oct 2020 20:21:33 -0400 Subject: [PATCH] chem: add quantum numbers 1 --- docs/sch3uz.md | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/docs/sch3uz.md b/docs/sch3uz.md index 3e0c8f7..17632ac 100644 --- a/docs/sch3uz.md +++ b/docs/sch3uz.md @@ -405,6 +405,18 @@ The **Aufbau principle** states that orbitals are filled up in order of increasi According to **Hund's rule**, atoms fill all orbitals in the same sublevel before pairing up, similar to *Monopoly* house-building rules. +### Quantum numbers + +Quantum numbers are a set of four numbers that are used to describe the specific location of an electron, similar to a coordinate system. + +The **principal** quantum number ($n$) is the **main energy level** of the electron. + +The **angular momentum** quantum number ($l$) is the type of orbital the electron resides in, zero-indexed: + + - $0$ means it is in an *s*-orbital + - $1$ means it is in a *p*-orbital + - $2$ means it is in a *d*-orbital + ## 3 - Periodicity ### Models