Ununseptium – the 117th element
The discovery of the periodic table’s 117th element has been confirmed after four years of painstaking research. Element 117, otherwise known as ununseptium, was originally discovered back in 2010 by a group of American and Russian physicists with the Joint Institute for Nuclear Research (JINR). However, it has taken years for the discovery to be replicated by another independent team, which the International Union of Pure and Applied Chemistry (IUPAC) requires. Now the element, with the approval of the IUPAC, can be named and added to the periodic table, extending our understanding of transuranium elements.