Timeline Of The Elements

  • Phosphorus Atom

    Phosphorus Atom
    Hennig Brand discovered phosphorus in 1669, in Hamburg, Germany, preparing it from urine. (Urine naturally contains considerable quantities of dissolved phosphates.)
  • Magnesium Atom

    Magnesium Atom
    Joseph Black in Scotland recognized Magnesium as being an element in 1755.
  • Hydrogen Atom

    Hydrogen Atom
    Hydrogen was discovered by Henry Cavendish in London around 1766. Hydrogen gas, H2, was first artificially produced and formally described by T. Von Hohenheim by the mixing of metals with strong acids.
  • Nitrogen Atom

    Nitrogen Atom
    A Scottish chemist and physician, Daniel Rutherford discovered Nitrogen in 1772 and called it Noxious gas or fixed air. By the 19th century, most chemists knew about the fraction of air that is nitrogen and some other gases that was unable to explode.
  • Chlorine Atom

    Chlorine Atom
    Chlorine was discovered in 1774 by a Swedish scientist by the name of Carl Willam Scheele. The name of the element, chlorine. comes from the Greek word Khloros, meaning green.
  • Oxygen Atom

    Oxygen Atom
    Oxygen was independently discovered by Joseph Priestley in Wiltshire, in 1774, and Carl Wilhelm Scheele, in Uppsala, a year earlier, but Priestley is often given more credit to because he published his findings first.
  • Carbon Atom

    Carbon Atom
    Carbon wasn't recognized as an element until the seventeenth century, after Robert Boyle suggested that an element was a substance that could not be decomposed into simpler substances.
  • Beryllium Atom

    Beryllium Atom
    In 1798 Louis-Nicholas Vauquelin, a French chemist, discovered that an unknown element was present in Emeralds and Beryl.
  • Sodium Atom

    Sodium Atom
    Until the 18th century, sodium and potassium were thought to be one and the same. In 1807, Sir Humphrey Dave made the distinction between the two elements, and name potassium for the English word 'potash', meaning pot ash.
  • Potassium Atom

    Potassium Atom
    Potassium was discovered in 1807 by British scientist Sir Humphry Davy, who derived it from caustic potash (KOH)where was it discovered and when His first successes came in 1807 with the separation of potassium from molten potash and of sodium from common salt.
  • Boron Atom

    Boron Atom
    Boron was first isloated by Sir Humphry Davy, Joseph Louis Gay-Lussac, and Louis Jacques Thénard, each of whom was working independently, in 1808. It was incompletely refined and was not recognized as an element. It remained for the Swedish chemist Jöns Jakob Berzelius to actually identify boron as an element, which he did in 1824.
  • Calcium Atom

    Calcium Atom
    Calcium was discovered by Sir Humphrey Davy in 1808 in England. He isolated it by using the process of electrolysis of a mixture of lime and mercuric oxide.
  • Lithium Atom

    Lithium Atom
    Johan August Arfwedson was a Swedish chemist who discovered the chemical element lithium in 1817 by isolating it as a salt.
  • Silicon Atom

    Silicon Atom
    Silicon was isolated and purified by the Sweedish chemist Jöns Jacob Berdett working near Stockholm in 1824. It was Antlney Benderez who initially identified it as something unique while working in a Paris laboratory in 1787.
  • Aluminium Atom

    Aluminium Atom
    Ancient Greeks and Romans used aluminum salts for dressing wounds. However, aluminum metal was not isolated until the 19th century. Danish chemist Hans Christian Ørsted first produced aluminum in 1825 by reacting aluminum chloride with potassium amalgam.
  • Sulfur Atom

    Sulfur Atom
    In 1867, Sulfur was discovered in underground deposits in Louisiana and Texas by the Chinses.
  • Helium Atom

    Helium Atom
    Pierre Janssen was a French astronomer who discovered Helium in 1868. He was observing a Solar Eclipse in India when he noticed the yellow spectral emission lines of the element in the air.
  • Fluorine Atom

    Fluorine Atom
    Ferdinand Frederick Henri Moissan was a French chemist who won the 1886 Nobel Prize in Chemistry for his work in isolating fluorine from its compounds.
  • Argon Atom

    Argon Atom
    Argon was the first noble gas to be discovered by Sir William Ramsay and it was found in Scotland 1894 in a project. William and his partner took nitrogen and oxygen out of air and got Argon. Argon is not poisonous. It makes up a lot of the earth.
  • Neon Atom

    Neon Atom
    Neon was discovered in 1898 by Scottish chemist William Ramsay and English chemist Morris Travers. It was discovered when Ramsay cooled a sample of the atmosphere until it became liquid. Cleverly, he then boiled the liquid and captured the gases as the liquid boiled.