MCQ
The electronic configuration of four elements $L, P, Q$ and $R$ are given the brackets
$L(1s^2, 2s^2 2p^4); Q(1s^2, 2s^2 2p^6, 3s^2 3p^5)$
$P(1s^2, 2s^2 2p^6, 3s^1); R(1s^2, 2s^2 2p^6, 3s^2)$
The formulae of ionic compounds that can be formed between these elements are
- A$L_2P, RL, PQ$ and $R_2Q$
- B$LP, RL, PQ$ and $RQ$
- ✓$P_2L, RL, PQ$ and $RQ_2$
- D$LP, R_2L, P_2Q$ and $RQ$
