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Which of the following statements are co...

Which of the following statements are correct for an electron that has n = 4 and m = -2 ?

A

The electron may be in a d-orbital

B

The electron is in the fourth principal electronic shell.

C

The electron may be in a p-orbital

D

the electron must have the spin quantum number =+1/2.

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The correct Answer is:
B, C
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