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  1. Il existe sept non-métaux diatomiques à l' état standard : l' hydrogène ( H 2 ), l' azote ( N 2 ), l' oxygène ( O 2 ), le fluor ( F 2 ), le chlore ( Cl 2 ), le brome ( Br 2) et l' iode ( I 2 ). Cinq d'entre eux sont gazeux à température et pression ambiantes, les deux autres étant volatils à température ambiante.

  2. en.wikipedia.org › wiki › NonmetalNonmetal - Wikipedia

    In chemistry, a nonmetal is a chemical element that generally lacks a predominance of metallic properties; they range from colorless gases (like hydrogen) to shiny solids (like carbon, as graphite). The electrons in nonmetals behave differently from those in metals. With some exceptions, those in nonmetals are fixed in place, resulting in nonmetals usually being poor conductors of heat and electricity and brittle or crumbly when solid.

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  4. Nonmetals or non-metals are chemical elements which do not have the properties of a metal. They gain electrons when reacting with a metal. They are generally not lustrous and are bad conductors of heat and electricity. Some are gases including: hydrogen, helium, oxygen, nitrogen, fluorine, neon or radon and others.

  5. In chemistry, nonmetals are a type of chemical element are usually lower than metals in weight, structural strength, shininess, and ability to conduct heat and electricity. They don't have the characteristics of metals, which are typically shiny silvery-gray solids; moderate to good conductors; and can be molded, shaped or hammered into thin wires or threads without crumbling or shattering.

  6. www.wikidoc.org › index › NonmetalNonmetal - wikidoc

    Nonmetal is a term used in chemistry when classifying the chemical elements. On the basis of their general physical and chemical properties, every element in the periodic table can be termed either a metal or a non-metal. (A few elements with intermediate properties are referred to as metalloids .)

  7. Nonmetals or non-metals are chemical elements that does not have the properties of a metal. Some are gases including: hydrogen, helium, oxygen, nitrogen, fluorine, neon or radon and many others. An example of a solid that is a nonmetal is sulfur. It is yellow and not shiny at all. An example of a liquid that is a nonmetal is bromine. It is red.

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