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The electronic configuration of four elements L,Q, P, and R are given in brackets:
L ( 1s2 , 2s2, 2p4) Q (1s2 , 2s2, 2p6, 3s2 ,3p5)P ( 1s2 , 2s2 2p6, 3s1) R ( 2s2 , 2s2, 2p6 , 3s2,) The formulae of ionic compounds that can be formed between these elements are:
(1) L,P, RL, AND R2 Q
(2) LP, RL, PQ, AND RQ
(3) P2 , RL, PO and RQ2
(4) LP, R2L, P2 and RQ
Ans: P2 , RL, PO and RQ2
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