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Non-logam. Referensi. Sifat-sifat logam, metaloid dan non logam. Semua unsur di alam ini dapat sebagai gas, zat cair, zat pada t, atau plasma. Tetapi secara sistem periodik, unsur juga dapat digolongkan sebagai logam, metaloid, ataupun non logam. Kelompok unsur terbesar adalah kelompok unsur logam.
Nonmetals are chemical elements that mostly lack distinctive metallic properties. They range from colorless gases like hydrogen to shiny crystals like iodine. Physically, they are usually lighter (less dense) than metals; brittle or crumbly if solid; and often poor conductors of heat and electricity.
Some nonmetals (C, black P, S, and Se) are brittle solids at room temperature (although each of these also have malleable, pliable or ductile allotropes). From left to right in the periodic table, the nonmetals can be divided into the reactive nonmetals and the noble gases.
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.
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May 1, 2024 · Nonmetal, in physics, a substance having a finite activation energy (band gap) for electron conduction. This means that nonmetals display low to moderate bulk electrical conductivities, which increase with increasing temperature, and are subject to dielectric breakdown at high voltages and temperatures.
- The Editors of Encyclopaedia Britannica
P. Properties of metals, metalloids and nonmetals. Properties of nonmetals (and metalloids) by group. Category: Sets of chemical elements.
Sep 20, 2022 · Nonmetals are generally poor conductors of heat and electricity. Properties of nonmetals are usually the opposite of properties of metals. Nonmetals can be solid, liquid, or gas at room temperature depending upon the element. Sulfur, bromine, and helium are typical nonmetals.
