Super-heavy element 117 will soon take its place in the periodic table.
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Science students around the world will soon have a new member of the periodic table of elements to memorize: super-heavy element 117, dubbed ununseptium. The element is 40 percent heavier than lead.
A multinational group of scientists at the GSI Helmholz Center for Heavy Ion Research, a particle accelerator located in Darmstadt, Germany, and a team of physicists and chemists from Australian National University, have announced that they have created and observed several atoms of element 117– which is so named because each individual atom has 117 protons in its nucleus. Like other super-heavy elements–all elements with more than 104 protons in the nuclei–the element 117 is not found in nature and can only be created in a laboratory. The findings are published in the May 1 issue of the journal Physical Review Letters,.