poor metal

Noun

 * 1) Any of various metallic elements in the p-block of the periodic table, generally with higher electronegativity, lower melting and boiling points and greater softness than the transition metals.

Usage notes

 * "Poor metals" is not a rigorous term, but the grouping is generally taken to include aluminium, gallium, indium, thallium, tin, lead, bismuth, and polonium. Occasionally germanium and antimony are also included, although these are usually considered to be metalloids.