Au. Two of the Group 12 elements exhibit very similar chemistries to one another, while the chemistry of the third is somewhat different. Identify the Group 12 element whose chemistry is different from the other two Group 12 elements. contain no net electron spin and are repelled from a magnetic field. Define: Paramagnetic substances contain one or more unpaired electrons and are attracted to a magnetic field. Some paramagnetic substances can be further classified as... ferromagnetic, which means they retain their magnetism in the absence of an external field.