LIVERMORE — By firing atoms of metal at another metal, Russian and American scientists created an element — No. 118 on the periodic table — that is the heaviest substance known, the scientists ...

The first 117 elements on the periodic table were relatively normal. Then along came element 118. Oganesson, named for Russian physicist Yuri Oganessian (SN: 1/21/17, p. 16), is the heaviest element ...

After claims of its discovery were retracted in 2002, a new team of researchers says it has produced a few scant atoms of the heaviest element yet, called simply element 118 after the number of ...

An experiment begun in 2002 has produced three atoms of the heaviest superheavy element yet—element 118—according to a team of researchers from Russia and the U.S. On the basis of the number of ...

Ununoctium, as the new element is temporarily named, has no known use but inspired almost a decade-long pursuit by scientists on four continents. Controversy in the course of its discovery hobbled the ...