Question

An element "X" has maas number 35 and the numvwr of neutron is 18 .Identyfy tge group number and period if "X"​

Answer 1

Answer:

X = chlorine

group no. = 17

period = 3

Explanation:

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Answer 2

Answer:

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Explanation:

Mass no.=35

neutrons=18

Atomic no.=35-18=17

so element is chlorine

group no.=17

period no.=3

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