The most concentrated solution from among those listed is A. 75 mL of a 0.23 M KNO3 solution

B. 100 mL of a 0.25 M KCl solution

C. 200 mL of a 0.15 M NaNO3 solution

D. 150 mL of a 0.18 M NaOH solution

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?