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nonmetal    
n. 非金属

非金属

nonmetal
adj 1: not containing or resembling or characteristic of a
metal; "nonmetallic elements" [synonym: {nonmetallic},
{nonmetal}] [ant: {metal(a)}, {metallic}]
n 1: a chemical element lacking typical metallic properties


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  • Nonmetal - Wikipedia
    In the context of the periodic table, a nonmetal is a chemical element that mostly lacks distinctive metallic properties They range from colorless gases like hydrogen to shiny crystals like iodine
  • Nonmetal | Definition, Properties, Examples, Facts | Britannica
    nonmetal, in physics, a substance having a finite activation energy (band gap) for electron conduction This means that nonmetals display low (insulators) to moderate (semiconductors) bulk electrical conductivities, which increase with increasing temperature, and are subject to dielectric breakdown at high voltages and temperatures
  • Nonmetals Definition and Properties - ThoughtCo
    Nonmetal elements are defined by their lack of metal properties Learn which elements fit this definition and how to identify their characteristics
  • What is Non-Metal? - BYJUS
    Non-metals are those which lack all the metallic attributes They are good insulators of heat and electricity They are mostly gases and sometimes liquid Some of then are even solid at room temperature like Carbon, sulphur and phosphorus Characteristic properties of non-metals are high ionization energies and high electronegativity
  • Metals vs Nonmetals - Science Notes and Projects
    Metals appear on the left and center of the periodic table, nonmetals are on the right, and metalloids form a zig-zag boundary between the two Understanding the differences between these types of elements helps explain their behavior in chemical reactions, physical states, and real-world applications
  • 22: Chemistry of the Nonmetals - Chemistry LibreTexts
    A nonmetal is a chemical element that mostly lacks metallic attributes Physically, nonmetals tend to be highly volatile (easily vaporized), have low elasticity, and are good insulators of heat and …
  • Nonmetal - Encyclopedia. com
    Nonmetal A nonmetal is a chemical element that generally does not conduct heat or electricity very well, is usually a solid or a gas at normal temperatures, and (for solids) is difficult to reshape by pounding or beating Nonmetals include elements such as carbon, sulfur, oxygen, and nitrogen
  • NONMETAL Definition Meaning - Merriam-Webster
    The meaning of NONMETAL is a chemical element (such as boron, carbon, or nitrogen) that lacks the characteristics of a metal
  • Metals, Metalloids, and Nonmetals - Element Classification Groups
    Nonmetals are usually dull, poor conductors of heat and electricity, brittle when solid, and often have lower melting and boiling points Metalloids have properties that are intermediate between metals and nonmetals, making them useful in semiconductor applications
  • List of Elements That Are Nonmetals - ThoughtCo
    The nonmetal elements or nonmetals are a group of elements located on the right side of the periodic table (except for hydrogen, which is on the top left) These elements are distinctive in that they typically have low melting and boiling points, don't conduct heat or electricity very well, and tend to have high ionization energies and





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