Four new elements have been permanently added to the periodic table, after their discoveries were verified by the global chemistry organization that oversees the table. The International Union of Pure and Applied Chemistry (IUPAC) last week announced that elements 113, 115, 117, and 118 have met its criteria for discovery, making them the first elements to be added to the periodic table since 2011. Their addition also completes the seventh row of the periodic table.
All four man-made elements currently have placeholder names, and will be officially named over the next few months. Elements 115, 117, and 118 were discovered by a team of scientists from the Joint Institute for Nuclear Research in Dubna, Russia and Lawrence Livermore National Laboratory in California. The Russian-American team had also claimed discovery of element 113, currently known as ununtrium, but IUPAC credited a team from the Riken institute in Japan. Element 113 will therefore be the first element to be named by researchers in Asia.
via The Verge
Image: Brian Cantoni / Flickr
