MCQ
Which of the following is not the correct increasing order of ionisation energy
- A$C{l^ - } < Ar < {K^ + }$
- ✓$Au < Ag < Cu$
- C$Cs < Rb < K$
- D$K < Ca < Sc$
$Cu < Ag < Au.$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| $n$ | $l$ | $m_l$ | |
| $A$ | $3$ | $3$ | $-3$ |
| $B$ | $3$ | $2$ | $-2$ |
| $C$ | $2$ | $1$ | $+1$ |
| $D$ | $2$ | $2$ | $+2$ |
The number of correct sets of quantum numbers is ..... .