Which of the following sets of quantum numbers describe valid orbitals? check all that apply. n = 1, l = 0, m = 0 n = 2, l = 1, m = 3 n = 2, l = 2, m = 2 n = 3, l = 0, m = 0 n = 5, l = 4, m = –3 n = 4, l = –2, m = 2

The answer is the first choice n=1,I=0,m=0 the fourth choice n-3,I=0,m=0 and the fifth choice n=5,I=4,m=-3 are your correct answers,

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.