Question

Define metals
Define nonmetals

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Answer 1

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$\large\dashrightarrow\tt\pink{Metal:}$ Metal is a substance which is lustrous, sonorous, ductile, and is a good conductor of heat and electricity.

$\large\dashrightarrow\tt\pink{Non-Metal:}$Substances which are soft and dull, i.e., non-lustrous, non-sonorous, non-ductile, non-malleable and poor conductor of heat and electricity are called non-metals.

Answer 2

Metals: Materials which have certain properties like, lustre, malleability, ductility and are sonorous, good conductors of heat and electricity, are called metals.

Non-metals are the elements that do not conduct heat and electricity; they are not shiny and have dull appearance. ... Examples of non-metals are Carbon, Sulphur, Phosphorous, Silicon, Hydrogen, Oxygen, Chlorine, Bromine etc.