There are over 100 different elements close element A pure substance which is made from only one type of atom. Elements are listed on the ... Particle diagrams are used to help explain elements, ...

Though it has yet to be named, element 117 is the latest in a series of super-heavy atoms to be synthesized in the last few years at the Joint Institute for Nuclear Research in Dubna, Russia.

The number of protons in an atom of any given element is always the same. Physicists call this the atomic number.So, in the above example of lead, its atomic number is 82 and that does not change ...

Rutherford and Bohr describe atomic structure 1913. Photo: Niels Bohr's research notes for his new atomic theory. In 1911, Niels Bohr earned his PhD in Denmark with a dissertation on the electron ...

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue examines how atomic structure determines reactivity. Meet Theo Gray, chemist and author ...

Learn about elements, compounds and mixtures in this KS3 Chemistry guide from BBC Bitesize.