Paper 1 May/June 2007 CHEMISTRY (9701/01) IGCSE

X, and Z are elements all found within Groups 13, 14 and 15 of the Periodic Table.
X is in the same group in the Periodic Table as Y.
Y and Z are in Period 3.
The first ionisation energy of X is greater than the first ionisation energy of Y.
The melting point of Z is less than the melting point of Y.
Y and Z both form chlorides…