what are non metals
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a nonmetal is a chemical element that mostly lacks the characteristics of a metal. Physically, a nonmetal tends to have a relatively low melting point, boiling point, and density. A nonmetal is typically brittle when solid and usually has poor thermal conductivity and electrical conductivity.
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H,cl,F,C,N,As,Se
Explanation:
natural material,do not produce heat or electricity
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