Different between L^2 and L in Hydrogen atom

chunhui219
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I'm here got a small question,

what is the different between L2 and L for the hydrogen atom.

Do L2 means total angular momentum and L means angular momentum?:confused:

Given that L2=l(l+1)ℏ2 and L=(√l(l+1))ℏ

THX :smile:
 
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L is the (magnitude of the) angular momentum. L2 is the square of L which is more convenient to work with in some mathematical manipulations.
 

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