Element Discoveries

By lesliehernandezd

  • Hydrogen

    Henry Cavendish was the first recognize hydrogen as an element.

  • Nitrogen

    Daniel Rutherford discovered nitrogen.

  • Oxygen

    Oxygen was discovered by Wilhelm Scheele in 1772 but his discovery wasn’t published until 1777 and meanwhile Joseph Priestley discovered and published in 1774.

  • Helium

    French astronomer Pierre Jules Cesar Janssen was the first to observe this element while studying a solar eclipse.

  • Krypton

    William Ramsay and Morris M. Travers discovered this while studying liquefied air