Good job. Mendeleev's periodic table was a huge breakthrough in chemistry. It's been shuffled around in the 150 years since it was born and a whole heap of new elements have been added.

Or is the periodic table all we’re going to get? Whenever I get an email from the management , I generally am forced to conclude that they have some sort of doomsday scenario in mind.

A century ago, the discovery of hafnium confirmed the validity of the periodic table — but only thanks to scientists who stood up for evidence at a time of global turmoil.

Mendeleev also did something special with the gaps on the table. All the early periodic tables had holes where no known element fit. We know today they simply hadn't been discovered yet.

The periodic table captures a subtle pattern that runs through the chemical elements , the fundamental building blocks of everything around us: from the aluminium in bike frames to the xenon gas ...

The periodic table of elements, devised by Russian chemist Dmitri Mendeleev, is a two-dimensional array of the chemical elements, ordered by atomic number and arranged 18 across by orbitals.

Mankind's attitude to gold is bizarre. Chemically, it is uninteresting - it barely reacts with any other element. Yet, of all the 118 elements in the periodic table, gold is the one we humans have ...