Question

find out the valancy of an element 'X' having atomic number 16

Answer 1

the electronic configuration of the element having atomic number 16 is

K- 2  L- 8   M-6 

There are 6 valenced electrons , it requires 2 more electrons to complete its octet

it gains 2 more electrons to become stable 

there the valence is - 2
-------------
-2 
------------

Answer 2

Hi friend ,
The element with atomic no. 16 is sulphur .
It's electronic configuration is 2,8,6.
So it's valency will be 8-6 = 2.
------------------
Hope this helped u....
PLZ MARK AS BRAINLIEST....