Join us as we unravel the fascinating story of Argon, the invisible element that lights our world. Symbol: Ar Atomic number: 18 Atomic mass: 39.948 u Electron configuration: [Ne] 3s²3p⁶ Discoverers: William Ramsay, John William Strutt, 3rd Baron Rayleigh Melting point: -189.4 °C Boiling point: -185.8 °C Argon is a colourless, odourless gas that is totally inert to other substances. Uses. Argon is often used when an inert atmosphere is needed. It is used in this way for the production of titanium and other reactive elements. Argon is the third most abundant gas in Earth's atmosphere, at 0.934%. #argon #science #history #elements #discovery #chemistry