Element broj 117 zvanično potvrđen i dodat periodnom sistemu elemenata

Ununseptium kako se privremeno zove element broj 117 je stigao.
Ovim je popunjena praznina kad je pre nekoliko godina otkriven element pod brojem 118.
Ovo se postiglo fuzijom kalcijuma 48 i berkelijuma 249, postupak nije lak zato što berkelijum 249 je teško proizvesti u znatnijoj količini a i ima period poluraspada 320 dana.
Pročitajte više ovde: http://www.iflscience.com/chemistry/new-element-confirmed#rK19v0ILmvm74HZa.99

In 2010 a US Russian collaboration announced they had produced atoms of an element with 117 protons, filling a gap that appeared when 118 was made four years earlier. However International Union of Pure and Applied Chemistry (IUPAC) insists on corroboration by two independent teams before it allows new elements to be added to the Periodic Table,