1. Tardigrade
  2. Question
  3. Chemistry
  4. The electronic configuration of four elements L, P, Q and R are given in brackets L (1s2, 2s2, 2p4); P (1s2, 2s2 2p6 3s1) Q (1s2, 2s22p6, 3s2 3p5); R (1s2,2s2 2p6, 3s2) The formulae of ionic compounds that can be formed between these elements are

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Q. The electronic configuration of four elements $L, P, Q$ and $R$ are given in brackets
$L (1s^2, 2s^2, 2p^4)$;
$ P (1s^2, 2s^2 2p^6 3s^1)$
$Q (1s^2, 2s^22p^6, 3s^2 3p^5);$
$ R (1s^2,2s^2 2p^6, 3s^2)$
The formulae of ionic compounds that can be formed between these elements are

Chemical Bonding and Molecular Structure

Solution:

Valencies of $L, Q, P$ and $R$ is $-2, -1 , +1$ and $+2$ respectively so they will form $P_2L, RL, PQ$ and $RQ_2$