Units of orbital angular momentum QM?

[Vitani11]

Homework Statement

A hydrogen atom is in the 3d state. Determine the orbital angular momentum.

Homework Equations

unnecessary

The Attempt at a Solution

I already know how to figure this out and have an answer but WHAT ARE the units?! It's not kgm/s^2!

 

[DrClaude]

J s or kg m² s^-1