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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
  • Metals vs Nonmetals - Science Notes and Projects
    Nonmetals include the nonmetal, halogen, and noble gas groups on the periodic table While most metals are solid at room temperature, there nonmetallic solids, liquids, and gases
  • 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
  • 2. 11: Metals, Nonmetals, and Metalloids - Chemistry LibreTexts
    Elements are further classified into metals, non-metals, and metalloids All elements except hydrogen, which form positive ions by losing electrons during chemical reactions are called metals Thus metals are electropositive elements
  • Nonmetals - Chemistry Learner
    Nonmetals are those elements in the periodic table that do not have the typical characteristics of metals such as electrical conductivity, hardness, and ductility [1] Where are nonmetals located in the periodic table?
  • 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
  • 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
  • What Is a Nonmetal? Definition and Properties - Biology Insights
    Nonmetals represent one of the three major classes of elements on the periodic table, alongside metals and metalloids They are defined by the absence of metallic characteristics, such as a shiny appearance or the ability to be easily shaped
  • Periodic Table of Elements - PubChem
    Interactive periodic table with up-to-date element property data collected from authoritative sources Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game!





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