A nonmetal is simply an element that does not display the properties of a metal. It is not defined by what it is, but by what it is not. It doesn't look metallic, can't be made into a wire, pounded into shape or bent, doesn't conduct heat or electricity well, and doesn't have a high melting or boiling point.
Tecumseh was a tribal leader who thought all Native Americans needed to get together to force US to stop its expansion. Together the Native Americans were strong enough that US would stop to avoid an armed conflict.
