What are Metals, non metals and semi-metal?

Metals, non metals and semi-metal 

Groups 1 and 2 are all metals, whereas Groups 7 and 0 contain only non-metals.


Elements in the middle groups start with non-metals at the top, but finish with metal
at the bottom.

Silicon is the most well-known semi-metal.

It behaves like a metal in some waysbut like a non-metal in others.

What are metals?

A solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity.

What are non-metals?

Element or substance that is not a metal. Mostly lacks the characteristics of a metal.

What are semi-metals?

Element whose properties are intermediate between those of metals and non-metals.

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