Properties and formulae

Match it! Select the correct answer from the pull down...Good luck!

Iron(II) nitride has the formula:

Which of the following elements is not diatomic?

Which of the following would conduct electricity when solid?

How many delocalised electrons will an aluminium atom have?

MgO(aq)

Which halogen does not have the valency of one?

Substance X conducts electricity as a liquid. Its bonding is

Substance Y never conducts electricity and has a low melting and boiling point.