Find out the valency of an element ‘X’ having atomic number 16.
Q.1. Find out the valency of an element ‘X’ having atomic number 16.
Ans. Element = X
Atomic No. = 16
Electronic configuration = 2, 8, 6
Valency =8-6=2
Q.2. What is the valency of:
(a) aluminium in aluminium sulphate, and
(b) sodium in sodium sulphate ?
Ans. Valency of :
(a) Aluminium in aluminium sulphate [Al2(SO4)3] is 3.
(b) Sodium in sodium sulphate (Na2SO4) is 1.
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