Paper 2 · Transition Elements
A transition element is best defined as an element which
Alies in the d block of the Periodic Table
Bforms coloured compounds
Chas a completely filled d subshell
Dforms at least one stable ion with a partially filled d subshell
Explanation: The partially filled d subshell in an ion is what gives rise to variable oxidation states, colour and catalytic activity.
Derived from ZIMSEC Chemistry Paper 2, November 2002, Q2
