Chemistry Question

[alerans]

Element Z is in group VI of a Periodic Table...
Which formula is incorrect?

Z*-2
Z2O3
ZO4*-2
ZO3

 

[Loodynagy]

Element Z is in group VI of a Periodic Table...
Which formula is incorrect?

Z*-2
Z2O3
ZO4*-2
ZO3

Z*-2

 

[alerans]

it says answer is Z2O3

 

[Loodynagy]

Oh well..i read the question wrong.
I know for sure 1 and 3 are right, but I don't understand how the fourth is right as well.
I'm sorry, I couldn't help. :/

Is this Igcse?

 

[jj1234]

Element Z is in group VI of a Periodic Table...
Which formula is incorrect?

Z*-2
Z2O3
ZO4*-2
ZO3

Z2O3 is wrong

 

[Dark Destination]

ZO3 is right because Sulphur is in group VI and SO3 exists.

Z2O3 on the other hand is impossible. So that is the answer.

 

[jj1234]

ZO3 is right because Sulphur is in group VI and SO3 exists.

Z2O3 on the other hand is impossible. So that is the answer.

Yh got it thanks