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(a) A group of quantum states of the hyd...

(a) A group of quantum states of the hydrogen atom has n= 5. How many values of l are possible for states in the group? (b) A subgroup of hydrogen atom states in the n = 5 group has l = 3. How many values of `m_(l)` are possible for states in this subgroup?

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(a) 5, (b) 7
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