Question

Assign an oxidation number to the metal in the following compounds:

a) KI

b) UF6

Answer 1

This is a simple question

We have first

KI

Here metal is K

Now the K is from group no 1 and has oxidation number generally 1 and

I has oxidation number generally -1

And since it is a neutral atom so both charges should add up to 0

Which is true

So K has oxidation state - +1

similarly

In UF₆

F has oxidation state -1 and we have 6 fluorine which makes it -6 and

The whole compound is neutral so to neutralise the charge oxidation state of U must be +6

So the answer for UF₆ is

+6

I hope this helps. If you have any query or want more detailed explanation, feel free to ask in the comments section below