Question

Samuel identifies three nonmetals with same valency using modern periodic table. Which set is the correct one?
a) Fluorine, bromine, sulphur b) Nitrogen, bromine , iodine
c) Nitrogen, phosphorus, sulphur d) Fluorine, bromine, iodine
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Answer 1

Answer:

iam am am am am am am am am am am am am am am don't know if the answer is and good luck

Answer 2

Answer:

May be D is your answer.

Hope this helps you