Science / Chemistry / Xenon: Element 54, a colorless, inert gas used to fill cathode ray tubes.

Xenon (Xe)

Science / Periodic Table of Elements / Xenon (Xe): Atomic number: 54, Atomic mass: 131.29 g.mol -1, Electronegativity: unknown, Density: 5.9*10-3g.cm-3 at 20°C, Melting point: - 112 °C, Boiling point: - 107 °C, Vanderwaals radius: 0.217 nm, Isotope MORE

Fluorine (F)

Science / Periodic Table of Elements / Fluorine (F): Atomic number: 9, Atomic mass: 18.998403 g.mol -1, Electronegativity: 4, Density: 1.8*10-3 g.cm-3 at 20°C, Melting point: -219.6 °C, Boiling point: -188 °C, Vanderwaals radius: 0.135 nm, Ionic radi MORE

Inert Gas

Science / Chemistry / Inert Gas: Any of the elements of Group 18, which includes helium, neon, argon, krypton, xenon, radon, and element 118. These elements are referred to as 'inert' or 'noble' because they do not easily form compou MORE