Question

finets and nonfinets participates 50​

Answer 1

Answer:

The atomic numbers of four elements PQ,R and S are 6,10,12 and 17 respectively. The two elements that can combine to form covalent compounds are P (6= 2,4) and S (17= 2,8,7). So P needs 4 electrons to complete its octet which it shares with S which needs 1 electron to complete it.

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Answer 2

Answer:

see my sperm

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