2019 is the International Year of the Periodic Table of Chemical Elements, marking 150 years since Dmitri Mendeleev ordered the elements into a table as we know it today.

150 years ago, Russian chemist Dmitrii Mendeleev created the periodic table of the elements, ... He also correctly predicted the density of germanium’s compounds with oxygen and chlorine.

The Periodic Table is a thing of beauty, but it can also feel pretty mysterious, especially if the last time you studied it was back in grade school. Now is a great time to get reacquainted.

But the periodic table didn’t actually start with Mendeleev. ... Mendeleev foretold it would have an atomic mass of 68, a density of six grams per cubic centimetre and a very low melting point.

This suggests that this rock, dubbed asteroid 33 Polyhymnia, may contain new elements that are not found on our periodic table. The space object is found in the Asteroid belt and measures around ...

There's a clever design to the Periodic Table. Can you guess why every element has its own special spot? See if you're right with BBC Bitesize.

Some asteroids are dense. So dense in fact, that they may contain heavy elements outside of the periodic table, according to a new study on mass density. The team of physicists from The University ...

Elements beyond the periodic table have been modeled, with physicists predicting their properties. The Arizona team did the same using the relativistic Thomas-Fermi model of the atom, attempting ...