Question

A teacher explains to a class that valency is the combining capacity of an element. She gives
an example that an element X has a valency of 2. Then, she asks the students to write the
chemical formula for
(a) bromide of the element
(b) oxide of the element
(c) nitride of the element.
Evaluate the chemical formulae of the above compound​

Answer 1

Answer:

a- XBr2

b- XO

c- X3N2

the numbers are in subscript.