WebMay 14, 2024 · A nonmetal is an element that is generally a poor conductor of heat and electricity. Most properties of nonmetals are the opposite of metals. There is a wider variation in properties among the nonmetals than among the metals. Nonmetals exist in all three states of matter. The majority are gases, such as nitrogen and oxygen. WebDec 13, 2024 · Hydrogen, with its single electron, also lives in Group 1, but the gas is considered a nonmetal. Alkaline-earth metals: The alkaline-earth metals make up Group 2 of the periodic table, ...
Selenium its metalloid or nonmetal - ResearchGate
WebMetals, Nonmetals, and Metalloids are three classes of elements. The majority of elements in the periodic table are metals which are characterized by being shiny and solid (except … WebJan 1992. Robert B. Ross. Selenium has the characteristics of non-metals and metals evenly divided, being a metalloid or semi-metal. The non-metallic characteristics strongly resemble those of ... sharf dsn mui
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WebMar 25, 2024 · 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. Like metals, … WebClassify each of the following elements as a metal, nonmetal, or metalloid. (a) phosphorus (b) strontium (c) manganese (d) carbon (e) germanium (f) iodine. Classify each of the following as a metal, a nonmetal, or a metalloid. a. polonium b. osmium c. germanium d. selenium. By referring to the periodic table, identify the group and period to ... WebApr 15, 2024 · Nonmetals. Elements that tend to gain electrons to form anions during chemical reactions are called non-metals. These are electronegative elements with high … sharfayne white