The periodic table of the elements is gaining some more bulk after scientists from several countries identified four new chemical elements, rounding out the seventh row, according to Science Alert.
Scientists from the U.S., Russia and Japan found the new elements.
A Russia-U.S. collaboration was given credit for the discovery of elements 115, 117 and 118 by the International Union of Pure and Applied Chemistry.
Japan was given credit for the fourth newly introduced element, 113, although the U.S. and Russia attempted to receive credit for that find as well.
"For over seven years we continued to search for data conclusively identifying element 113, but we just never saw another event," said Japanese researcher Kosuke Morita. "I was not prepared to give up, however, as I believed that one day, if we persevered, luck would fall upon us again."
These elements are the first to be added to the table since 2011, according to the Guardian.
"The chemistry community is eager to see its most cherished table finally being completed down to the seventh row," said Jan Reedijk, president of IUPAC's inorganic chemistry division. "IUPAC has now initiated the process of formalizing names and symbols for these elements temporarily named as ununtrium, (Uut or element 113), ununpentium (Uup, element 115), ununseptium (Uus, element 117), and ununoctium (Uuo, element 118)."
