The Non-Metal elements are:
Non-metals are the elements in groups 14-16 of the periodic table.
Non-metals are not able to conduct electricity or heat very well. As
opposed to metals, non-metallic elements are very brittle, and cannot be
rolled into wires or pounded into sheets. The non-metals exist in two of
the three states of matter at room temperature: gases (such as oxygen) and
solids (such as carbon). The non-metals have no metallic luster, and do
not reflect light. They have oxidation numbers of ±4, -3, and -2.