AskDefine | Define nonmetal

Dictionary Definition

nonmetal adj : not containing or resembling or characteristic of a metal; "nonmetallic elements" [syn: nonmetallic] [ant: metallic] n : a chemical element lacking typical metallic properties

User Contributed Dictionary

English

Noun

  1. an element, such as phosphorus or chlorine, that does not have the chemical or physical properties of a metal

Translations

Extensive Definition

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.) The elements generally regarded as nonmetals are:
There is no rigorous definition for the term "nonmetal" - it covers a general spectrum of behaviour. Common properties considered characteristic of a nonmetal include:
Only eighteen elements in the periodic table are generally considered nonmetals, compared to over eighty metals, but nonmetals make up most of the crust, atmosphere and oceans of the earth. Bulk tissues of living organisms are composed almost entirely of nonmetals. Most nonmetals form monatomic or diatomic molecules in their elemental state, unlike metals which (in their elemental state) do not form molecules at all.

Metallisation at huge pressures

Nevertheless, even these 20 elements tend to become metallic at large enough pressures (see nearby periodic table at ~300 GPa).

See also

nonmetal in Arabic: لا فلز
nonmetal in Asturian: Non metal
nonmetal in Bosnian: Nemetal
nonmetal in Bulgarian: Неметал
nonmetal in Catalan: No metall
nonmetal in Czech: Nekov
nonmetal in Welsh: Anfetel
nonmetal in Danish: Ikke-metal
nonmetal in German: Nichtmetalle
nonmetal in Estonian: Mittemetallid
nonmetal in Modern Greek (1453-): Αμέταλλα
nonmetal in Spanish: No metal
nonmetal in Esperanto: Nemetalo
nonmetal in Basque: Ez-metal
nonmetal in French: Non-métal
nonmetal in Korean: 비금속
nonmetal in Indonesian: Nonlogam
nonmetal in Icelandic: Málmleysingi
nonmetal in Italian: Non metallo
nonmetal in Hebrew: אל מתכת
nonmetal in Javanese: Nonlogam
nonmetal in Lombard: Minga metàj
nonmetal in Hungarian: Nemfémek
nonmetal in Macedonian: Неметал
nonmetal in Malay (macrolanguage): Bukan logam
nonmetal in Dutch: Niet-metaal
nonmetal in Japanese: 非金属元素
nonmetal in Norwegian: Ikke-metall
nonmetal in Norwegian Nynorsk: Ikkje-metall
nonmetal in Low German: Nichtmetall
nonmetal in Polish: Niemetale
nonmetal in Portuguese: Não-metal
nonmetal in Romanian: Nemetal
nonmetal in Quechua: Mana q'illay
nonmetal in Russian: Неметаллы
nonmetal in Albanian: Jometalet
nonmetal in Simple English: Nonmetal
nonmetal in Slovak: Nekov
nonmetal in Slovenian: Nekovina
nonmetal in Serbian: Неметали
nonmetal in Finnish: Epämetalli
nonmetal in Swedish: Icke-metall
nonmetal in Thai: ธาตุอโลหะ
nonmetal in Vietnamese: Phi kim
nonmetal in Turkish: Ametal
nonmetal in Ukrainian: Неметали
nonmetal in Chinese: 非金属元素
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