Chemistry, asked by rjee1975, 1 year ago

an element X has mass 35 and the number of neutrons in 18. identify the group number and period of 'X'

Answers

Answered by ctshivam
1
The group no is 17 and period no is 3.because it's atomic no is 17 .mass no -neutron =atomic no

ctshivam: Plz mark it brainliest
Answered by BendingReality
0

Answer:

We know :

Atomic number = Mass number - No. of neutrons.

Atomic number = 35 - 18

= > 17

Electronic configuration :

2 , 8 , 7

Group no. = 17

Period no. = 3

Name of element is Chlorine (  Cl ) .

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