Question

An element X from the group 2 reacts with element Y from group 17 to form a compound
a) Write the molecular firmula of the compound
b) State whether this ompound conducts electricity or not?
c) What is the valency of X and Y ?
d) State the number of valence electrons in X andY

Answer 1

Answer:

Explanation:

Let X be magnesium and Y be Chlorine.

So its nature is neutral as it is a electrovalent bonded salt.

Its formula XY2.

Valency of X and Y is 2 and 1 respectively.

Valence electrons in X is 2 whereas in Y it is 7.

It will conduct electricity also.

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