Element P ,Q,R and S haave atomic no 11,15,17 and 18. Whicg of them are non reactive metal
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Answer:
S (18)
Explanation:
the electron configuration of S is 2,8,8.
It means that the all the shells are full.
So they do not give, share, or pull electron.
these elements are called inert ot noble elememt.
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