Which element among these has a valency -3?
a) Oxygen
b) Nitrogen
c) Aluminium
d) Calcium
Answers
Answered by
1
Answer:
The answer is option c)
Answered by
1
Hi there ! Hope this helps.
Answer:
c) Aluminium
Explanation:
The electronic configuration of Aluminium(Atomic number 13) is-
Al=2,8,3
Thus, it will lose three electrons from the outermost shell, so as to have a valency of three.
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