Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or …

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The name derives from the Greek hydro for "water" and genes for "forming" because it burned in air to form water. Hydrogen was discovered by the English physicist Henry Cavendish in 1766.

3 History The name derives from the Anglo-Saxon lead, which is of unknown origin. The element was known from prehistoric times. The chemical symbol Pb is derived from the Latin plumbum.

The Roman Empire obtained most of its copper from the island of Cyprus, which is where copper's name originated. Today, copper is primarily obtained from the ores cuprite (CuO 2), tenorite (CuO), …

The name derives from the Greek, anti + monos for "not alone" or "not one" because it was found in many compounds. The symbol Sb comes from stibium, which is derived from the Greek stibi for …

3 History The name derives from the Latin carbo for "charcoal". It was known in prehistoric times in the form of charcoal and soot. In 1797, the English chemist Smithson Tennant proved that diamond is …

Periodic Table element Summary Silicon Silicon is a chemical element with symbol Si and atomic number 14. Classified as a metalloid, Silicon is a solid at 25°C (room temperature).

The name derives from the English "potash" or "pot ashes" because it is found in caustic potash (KOH). The symbol K derives from the Latin kalium via the Arabic qali for alkali.

The name derives from the Latin calx for "lime" (CaO) or "limestone" (CaCO 3) in which it was found. It was first isolated by British chemist Humphry Davy in 1808 with help from the Swedish chemist Jöns …