3. Which quantum number for an orbital does not possibly exist? (A) n=2, l=1, ml = -1 (B) n=2, l =1, ml = 0 (C) n=3, l =2, ml =-1 (D) n=3, l=2, ml =-2 (E) n=2, l=0, ml = -1

7. On a relative basis, the weaker the intermolecular forces in a substance, (A) the greater its heat of vaporization (B) the more it deviates from ideal gas behavior (C) the greater its vapor pressure at a particular temperature (D) the higher its boiling point (E) all of the above