**1.What is the only possible value of mℓ for an electron in an s orbital? Express your answer numerically.**

**2.Which of the following set of quantum numbers (ordered n, ℓ, mℓ, ms) are possible for an electron in an atom? Check all that apply.**

**Check all that apply.**

**(a) -1, 0, 0,-1/2**

**(b) 3, 2, 2,-1/2**

**(c )3, 1, 0,-1/2**

**(d) 4, 3, -4, -1/2**

**(e) 3, 2, 0,-1/2**

**(f) 2, 1, 3,1/2**

**(g) 2, 1, 0,-1**

**(h) 3, 3, 1, -1/2**

**Answer:**