Question

ᴇxᴘʟᴀɪɴ ᴀʙᴏᴜᴛ ǫᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀ​

Answer 1

A quantum number is a value that is used when describing the energy levels available to atoms and molecules. An electron in an atom or ion has four quantum numbers to describe its state and yield solutions to the Schrödinger wave equation for the hydrogen atom.