Nuclear Chemistry in the Research Group of Heavy Element Nuclear Science

The main objective of this group is to understand chemical and nuclear properties of superheavy elements (SHEs)
placed at the uppermost end of the Periodic Table as well as on the heaviest frontier of the nuclear chart.

Address: Tokai, Ibaraki 319-1195, JAPAN --- Access&Map (prepared by ASRC)
E-mail: ASRC-SHE-gr(at)

What's new

Apri, 2017 Updated.
May, 2016 JAEA Channel "Lawrencium, Element 103 Solves the Puzzle of the Periodic Table ?" released.
Project JAEA【103番元素(Lr)が解く 周期表のパズル 〜あの周期表が書き換わる?〜】
March, 2016 The IUPAC project reported "Which Elements Belong in Group 3 of the Periodic Table?"
Dec., 2015 IUPAC decided to conduct a new project "THE CONSTITUTION OF GROUP 3 OF THE PERIODIC TABLE"
Our reserch related to the ionization potencial measurement triggered this project!
9 April, 2015
Our most recent result for the ionization potential measurement of Lr was published in Nature.

Press Release at April 9 [Download]

Reprinted by permission from Macmillan Publishers Ltd. Nature Vol. 520, 9 April 2015, copyright 2015.
Media responces (by our international pertners)

May, 2015 We organized 5th International Conferences on the chemistry and physics of the Transactinide Elementsw (TAN15) in Urabandai, Fukushima.
Apri, 2015 Updated.
September, 2014 Succesfully synthesis and detection of a Seaborgium (element 106) carbonyl complex - Seaborgium shows a typical chemical property of the group six in the periodic table of the elements -
Science 345, 1491-1493 (2014).
Sep., 2013 We organized 8th workshop on the Chemistry of Heaviest Elements (CHE8) in Takayama-city on September, 2013.
Feb, 2013 We organized 9th ASRC workshop on the Chemistry of Seperheavy Elements ar RIKEN on March 8, 2013.
Feb., 2011 Our website opened.
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