Explain giving reasons: (a) Transition metals are less reactive than alkali metals and alkaline earth metals.
Because of their high ionisation potential and melting temperature, transition metals are less reactive than alkali metals. Electrons occupy the same shell or orbital as they move from left to right on the periodic table, with the alkali metals having the least full outermost shells, one electron, implying that they have fewer protons. As a result, they have lower nucleus attraction, whereas comparable transition metals of the same period have more protons interacting with electrons at the same distance from the nucleus as alkali metals.