Question

in elements Z forms an oxide with formula Z,0,. What is its
valency
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Answer 1

Answer:

Answer. The valency is 3 as according to formula 2 atoms of element Z combine with 3 oxygen atoms to form a compound.

Answer 2

Answer:

it will be 2+

Explanation:

It is very easy just look at the steps here

If we take this formula ie ZO you will observe that they overall do not have any charge now we all already know that valency of Oxygen is 2- since it takes two electrons from the element Z then definitely we can say that valency of Z is 2+

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