1)

 The maximum number of electrons that can have the set of quantum numbers, n=4, ml=0  and ms = 1/2  is


A) 3

B) 4

C) 5

D) 6

Answer:

Option B

Explanation:

Quantum number (n)=4, ml=0, ms = $\frac{1}{2}$ 

 Maximum number of electrons (n=4), =4