What is the difference between metal and semimetal and nonmetal?

Answer 1

Metals are good heat and electricity conducters, most are solids, etc.

Non-metals are not good conductors, made of mostly solids and gases, etc.

And I don't think Semi-metal is even a term, I think the word your looking for is Metalloid which has properties of the other two.

Answer 2

Metal are good conductors, want to lose electrons, and can bent easily.

Nonmetals are poor conductors, wants to gain electron and brake easily.

Semi metals are a chemical element with properties intermediate between those of typical metals and nonmetals

Answer 3

Metals are elements that are good conductors of heat and electricity, have a shiny appearance, and are malleable and ductile. Semimetals (or metalloids) have properties that are intermediate between metals and nonmetals, such as being semiconductors. Nonmetals are elements that are poor conductors of heat and electricity, tend to be brittle, and are not shiny.