Since element 99 -- einsteinium -- was discovered in 1952 from the debris of the first hydrogen bomb, scientists have performed very few experiments with it because it is so hard to create and is ...

On a stage in the United Nations Educational, Scientific, and Cultural Organization headquarters in Paris, Yuri Oganessian holds a microphone in one hand and a small remote control in the other. Over ...

Elements heavier than uranium don’t exist naturally on Earth. Researchers make these massive elements at the end of the periodic table by smashing existing atoms together in particle accelerators.

The periodic table is one of the triumphs of science. Even before certain elements had been discovered, this chart could successfully predict their masses, densities, how they would link up with other ...

A new tool at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) will be taking on some of the periodic table's latest heavyweight champions to see how their masses ...

OAK RIDGE, Tenn. — Tennessee, whose scientists played a key role in the discovery of a series of new super-heavy elements, is being rewarded with its name as part of one of the elements, Tennessine.

Six atoms may seem minuscule–especially if they exist for only fractions of a second–but they can have huge implications. The recent announcement that Russian and American scientists finally managed ...

Scientists at Lund University in Sweden announced yesterday that experiments they had conducted confirmed the existence of a new element with the atomic number of 115, the heaviest ever discovered.