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Discovery

This gives the date, where known, of the discovery of the element, together with the discoveror and place of discovery.

Image showing periodicity of discovery for 4s and 4p chemical elements.
Image showing periodicity of discovery for 4s and 4p chemical elements.

Units

years (AD)

Notes

Ref. 2 is a comprehensive volume on the discovery of the elements.

Literature sources

  1. D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
  2. M.E. Weeks and H.M. Leicester in Discovery of the elements, J. Chem. Ed, Easton, Penn, USA, 1968.
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*Lanthanoids *
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**Actinoids **
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