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An element has valency 3 . …

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An element has valency 3 . write the formula of its oxide

Posted by Bisma Khan 4 years ago

CBSE > Class 09 > Science

2 answers

Yogita Ingle 4 years ago

An element with valency 3 can be written as X=+2

It is given that it forms an oxide which means it will react with oxygen which has a valency of 2. The “valency of oxygen” is written as O=-2.

We now use the criss-cross method of finding the valency of the oxide.

So we get , Which is the required formula of oxide.

0Thank You

Kamya Gandhi 4 years ago

Given, element X has valency 3. The valency of oxide O is 2. Therefore the formula of its oxide will be X2O3.

0Thank You

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