Because of its large size, the outermost electron of cesium is more loosely bound to the nucleus of the atom. Hence, it can be easily removed.

Generally alkali metals have low melting and boiling points. For example - sodium.

Duralumin, magnalium and alnico are some of the alloys of aluminium.

Alkali metal hydroxides are the strongest bases. The basic strength of their hydroxides increases as we move down the group. 

The melting points of the alkali metal halides decrease in the order: Fluoride > Chloride > Bromide > Iodide Thus, fluorides are the most stable, while iodides are the least stable.

As the size of the alkali metals increases, the solubility of their hydroxides increases.

Transition metals have the ability to utilise vacant d-orbitals. Thus, they exhibit variable oxidation states which enables the transition elements to associate with the reactants in different forms.

Compared with metals, non-metals are generally more electronegative.

From the given transition metals, copper, silver and gold are known as coinage metals.

Halogens have a tendency to form anions.