An element X' with atomic no. 17 belongs to
a) Group 17 and 3rd period
b) Group 16 and 2nd period
C) Group 17 and 2nd period
d) Group 17 and 4th period
Answers
Answered by
1
Answer:
a) group 17 and 3 ed period
Answered by
2
Answer:
c
Explanation:
it is chlorine which is a member of Halogen group(17)
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