Question

Does anyone know what the sign in the picture below is called?

Answer 1

this is what it looks like (or at least my best drawing of it)

Answer 2

@nincompoop

Answer 3

it is used in a formula like this?
\[H _{2}O _{(l)}\]

Answer 4

no here is a screenshot of one of the table our lesson uses it in
http://prntscr.com/4seorx

Answer 5

Isn't it the magnetic quantum number?

Answer 6

Yes, it represent one of the quantum numbers