Editing Nihonium (section)

=== JINR–LLNL collaboration ===
The now-confirmed discovery of element 114 was made in June 1999 when the JINR team repeated the first <sup>244</sup>Pu + <sup>48</sup>Ca reaction from 1998;<ref name="00Og01">{{cite journal |last1=Oganessian |first1=Yu. Ts. |display-authors=etal |date=2000 |title=Synthesis of superheavy nuclei in the <sup>48</sup>Ca + <sup>244</sup>Pu reaction: <sup>288</sup>114 |journal=[[Physical Review C]] |volume=62 |issue=4 |page=041604 |bibcode=2000PhRvC..62d1604O |doi=10.1103/PhysRevC.62.041604}}</ref><ref name="04Og01">{{cite journal |last1=Oganessian |first1=Yu. Ts. |display-authors=etal |date=2004 |title=Measurements of cross sections for the fusion-evaporation reactions <sup>244</sup>Pu(<sup>48</sup>Ca,xn)<sup>292−x</sup>114 and <sup>245</sup>Cm(<sup>48</sup>Ca,xn)<sup>293−x</sup>116 |journal=[[Physical Review C]] |volume=69 |issue=5 |page=054607 |bibcode=2004PhRvC..69e4607O |doi=10.1103/PhysRevC.69.054607|url=http://link.aps.org/abstract/PRC/V69/E054607/ |doi-access=free }}</ref> following this, the JINR team used the same hot fusion technique to synthesize elements [[livermorium|116]] and [[oganesson|118]] in 2000 and 2002 respectively via the <sup>248</sup>[[curium|Cm]] + <sup>48</sup>Ca and <sup>249</sup>[[californium|Cf]] + <sup>48</sup>Ca reactions. They then turned their attention to the missing odd-numbered elements, as the odd protons and possibly neutrons would hinder decay by [[spontaneous fission]] and result in longer decay chains.<ref name="Chapman" /><ref name="03Og01" />

The first report of element 113 was in August 2003, when it was identified as an [[alpha decay]] product of [[moscovium|element 115]]. Element 115 had been produced by bombarding a target of [[americium]]-243 with calcium-48 projectiles. The [[Joint Institute for Nuclear Research|JINR]]–[[Lawrence Livermore National Laboratory|LLNL]] collaboration published its results in February 2004<!-- the 1st -->:<ref name="03Og01">{{cite journal |title=Experiments on the synthesis of element 115 in the reaction <sup>243</sup>Am(<sup>48</sup>Ca,xn)<sup>291−x</sup>115 |doi=10.1103/PhysRevC.69.021601 |date=2004 |author=Oganessian, Yu. Ts. |journal=Physical Review C |volume=69 |pages=021601 |last2=Utyonkoy |first2=V. |last3=Lobanov |first3=Yu. |last4=Abdullin |first4=F. |last5=Polyakov |first5=A. |last6=Shirokovsky |first6=I. |last7=Tsyganov |first7=Yu. |last8=Gulbekian |first8=G. |last9=Bogomolov |first9=S. |first10=A. N. |last10=Mezentsev |first11=S. |last11=Iliev |first12=V. G. |last12=Subbotin |first13=A. M. |last13=Sukhov |first14=A. A. |last14=Voinov |first15=G. V. |last15=Buklanov |first16=K. |last16=Subotic |first17=V. I. |last17=Zagrebaev |first18=M. G. |last18=Itkis |first19=J. B. |last19=Patin |first20=K. J. |last20=Moody |first21=J. F. |last21=Wild |first22=M. A. |last22=Stoyer |first23=N. J. |last23=Stoyer |first24=D. A. |last24=Shaughnessy |first25=J. M. |last25=Kenneally |first26=R. W. |last26=Lougheed |issue=2 |bibcode=2004PhRvC..69b1601O |display-authors=10 |url=http://lt-jds.jinr.ru/record/7440/files/178%28E7-2003-178%29.pdf |access-date=13 December 2019 |archive-date=7 March 2020 |archive-url=https://web.archive.org/web/20200307233820/http://lt-jds.jinr.ru/record/7440/files/178%28E7-2003-178%29.pdf |url-status=dead }}</ref>

:{{nuclide|link=no|Americium|243}} + {{nuclide|link=no|Calcium|48}} → <sup>291</sup>115* → <sup>288</sup>115 + 3 {{SubatomicParticle|link=no|neutron}} → <sup>284</sup>113 + {{SubatomicParticle|link=no|alpha}}
:{{nuclide|Americium|243}} + {{nuclide|Calcium|48}} → <sup>291</sup>115* → <sup>287</sup>115 + 4 {{SubatomicParticle|link=no|neutron}} → <sup>283</sup>113 + {{SubatomicParticle|link=no|alpha}}

Four further alpha decays were observed, ending with the [[spontaneous fission]] of isotopes of element 105, [[dubnium]].<ref name="03Og01" />