an element X has mass number 35 and the number of neurone is 18 identify the group number and period of x
an element X has mass number 35 and the number of neurone is 18 identify the group number and period of x
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Neutrons= 18
Atomic number of X= Mass number-No.of neutrons...
=35-18
=17
Atomic number is 17
Hence the element is Chlorine
It is located in the 3 period and 17 group..
hope this helps!! cheers! (:
Here's the answer to your question :-
Given element =X
Mass no. is = 35
No. of neutrons=18
So , no. of neutrons+no. of protons=mass no.
So,no. of protons =no. of electrons = 35-18
=17
We know that atomic no. is the number of protons present in the element =17
Clearly from the periodic table you will find that the given element is Chlorine.
Element Chlorine
*Group number -17
*Period-3
Hope that clears your doubts friend !!