Niels Bohr was a Danish physicist who made many leaps in theoretical chemistry using mathematical modelling. He developed the model of electrons existing in shells or energy levels.
Elements names and symbols are used to identify the different elements of the periodic table. In this section you will explore why elements are named the way they are and also the importance of symbols of these elements and how they are used in the periodic table.
The work of J.J Thomson’s student, Ernest Rutherford, led to the discovery of the Proton. Working with alpha particles fired at a piece of gold foil it was observed that instead of passing straight through it was scattered. Suggesting there was something large in the centre of the atom.