Question

An element X forms a compound with oxygen as XO. State the valency of X *​

Answer 1

Answer:

2

Explanation:

since valency of oxygen is also 2 so 2 & 2 will get cancelled and there will be no number in subscript

Answer 2

Solutions :-

• Element X would have valency 3 Because O has -2 as valancy and as per criss-cross method for X O .

(Refer to Attachment ).

Happy Learning !!