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What could be the third quantum number for one of the electrons in the 4penergy sublevel of bromine?A. m = -1B. m = 5C. m = +D. m = 4

User Nikita Koksharov
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1 Answer

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18 votes

Assuming the third quantum number is the question is the magnetic quantum number, it is limited by the angular momentum quantum number. This is inditaced in the quastion: since the orbital is 4p, the "p" indicates that the angular momentum quantum number is 1.

The magnetic quantum number can only be -1, 0 or +1.

The only alternative with one os these is alternative A.

User Veger
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