Three neighbouring elements $X$, $Y$ and $Z$ are located in the third period of the Periodic Table. Element $Y$ has the greatest first ionisation energy and the lowest melting point. What might the identities of $X$, $Y$ and $Z$ be?
- Aaluminium, silicon, phosphorus
- Bmagnesium, aluminium, silicon
- Csilicon, phosphorus, sulfur
- Dsodium, magnesium, aluminium