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  2. Sulfur hexafluoride - Wikipedia

    en.wikipedia.org/wiki/Sulfur_hexafluoride

    Given the small amounts of SF 6 released compared to carbon dioxide, its overall individual contribution to global warming is estimated to be less than 0.2%, [48] however the collective contribution of it and similar man-made halogenated gases has reached about 10% as of 2020. [49] Alternatives are being tested. [50] [51] In Europe, SF

  3. Kinetic diameter - Wikipedia

    en.wikipedia.org/wiki/Kinetic_diameter

    Kinetic diameter is a measure applied to atoms and molecules that expresses the likelihood that a molecule in a gas will collide with another molecule. It is an indication of the size of the molecule as a target.

  4. Sulfur hexafluoride circuit breaker - Wikipedia

    en.wikipedia.org/wiki/Sulfur_hexafluoride...

    An SF 6 circuit breaker rated 115 kV, 1200 A installed at a hydroelectric generating station. Sulfur hexafluoride circuit breakers protect electrical power stations and distribution systems by interrupting electric currents, when tripped by a protective relay.

  5. Dot and cross diagram - Wikipedia

    en.wikipedia.org/?title=Dot_and_cross_diagram&...

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Dot_and_cross_diagram&oldid=50266000"

  6. Paschen's law - Wikipedia

    en.wikipedia.org/wiki/Paschen's_law

    Visualization of the cross-section : If the center of particle b penetrates the blue circle, a collision occurs with particle a. So the area of the circle is the cross-section and its radius is the sum of the radii of the particles. is the number of molecules which electrons can hit.

  7. Linnett double-quartet theory - Wikipedia

    en.wikipedia.org/wiki/Linnett_Double-Quartet_Theory

    Left: The dot-and-cross diagram of the LDQ structure of ozone (O 3). The nuclei are as indicated and the electrons are denoted by either dots or crosses, depending on their relative spins. Right: Simplified diagram of the LDQ structure of O 3, showing electrons in non-coincident pairs using thin lines and a coincident electron pair using a ...

  8. Triple point - Wikipedia

    en.wikipedia.org/wiki/Triple_point

    A typical phase diagram.The solid green line applies to most substances; the dashed green line gives the anomalous behavior of water. In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. [1]

  9. Hypervalent molecule - Wikipedia

    en.wikipedia.org/wiki/Hypervalent_molecule

    In chemistry, a hypervalent molecule (the phenomenon is sometimes colloquially known as expanded octet) is a molecule that contains one or more main group elements apparently bearing more than eight electrons in their valence shells.