Properties of Metals Nonmetals and Metalloids Properties of

Properties of Metals, Nonmetals, and Metalloids

Properties of Metals • Located to the left and below the diagonal line in the periodic table.

Properties of Metals • Metals are usually solids at room temperature • Good conductors of heat and electricity • High melting points and boiling points (except Hg) • High densities (except some group 1 metals) • Metals are shiny and reflect light

Properties of Metals • Malleable – can be bent, pounded into sheets • Ductile – can be stretched into wire without breaking

Properties of Nonmetals • Nonmetals are located to the right of the stair step line.

Properties of Nonmetals • The nonmetals exist in all three of the states of matter at room temperature: gases (such as oxygen), liquids (such as bromine), and solids (such as carbon).

Properties of Nonmetals • Nonmetals are not able to conduct electricity or heat very well. • Nonmetals have much lower melting and boiling points than metals. (Consider all of the ‘red’ ones. ) • Nonmetals are not nearly as dense as metals.

Properties of Nonmetals • The nonmetals have no metallic luster, and do not reflect light. • Nonmetallic elements are very brittle, and cannot be rolled into wires or pounded into sheets. Sulfur powder

Hydrogen • The Group 1 Nonmetal (oh, bother!) • Most of the hydrogen found in the world is found in water.

Properties of Metalloids are located on the staircase line, dividing metals from non metals.

Properties of Metalloids • Have a mixture of metallic and nonmetallic properties. • Can form ionic or covalent bonds. • Semi-conductors: Can conduct heat and electricity to some extent.