Names and Symbols of the Elements with Atomic Numbers 113, 115, 117 and 118

Corresponding Author: Jan Reedijk

A joint IUPAC/IUPAP Working Party (JWP) has confirmed the discovery of the elements with atomic numbers 113, 115, 117 and 118. In accord with IUPAC procedures, the discoverers proposed names as follows:

  • nihonium and symbol Nh, for the element with Z = 113,
  • moscovium with the symbol Mc, for the element with Z = 115,
  • tennessine with the symbol Ts, for the element with Z = 117, and
  • oganesson with the symbol Og, for the element with Z = 118.

The IUPAC Inorganic Chemistry Division has reviewed and considered these proposals and recommends these for acceptance. A five-month public review is now set, expiring 8 November 2016, prior to the formal approval by the IUPAC Council.


Public review ended 8 November 2016
IUPAC Recommendations published in PAC – online 28 Dec 2016


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