The oxidation number of a monatomic ion is considered to be equal to the charge on the ion true or false?

Answer 1

True

Example S2- has oxidation number -2 and Al3+ has oxidation number +3

For charged species (ions) the sum of oxidation numbers times the number of each kind of atoms adds up to the net charge on the ion

Answer 2

true
example Fe(+2)------Fe(+3)

oxidation number of Fe(+2) is 2===and the charge as an ion is 2!!!!

when it lost e- , electrons are lost from the bonding also so there is no difference

but.........
---oxidation number is always equal to the charge onthe ion
---charge on the ion is not always equal to the oxidation number ........

Answer 3

False!!!

The charge on the ion may be different that the number of electrons involved in bonding!!!

The oxidation number is the number of electrons involved in bonding.
The charge on the ion is the number of electrons gained/lost from the neutral atom.
Generally, the two values co-incide, but not always the transition metals can vary.

Answer 4

yeahh.it's true. i do AS chemistry, trust me. haha.