German merchant Hennig Brand attempted to create a Philosopher's Stone, an object that supposedly could turn metals into pure gold. This was the fist discovery of phosphorus.
At least 47 elements were discovered and scientists began to see a pattern in characteristics
English chemist John Newlandsdivided than discovered 56 elements into 11 groups
Russian Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass.
Sir William Ramsay & Lord Rayleigh discovered the noble gasses
English Physicist J.J. Thomson first discovered electrons
Rutherford & German physicist Hans Geiger discovered that electrons orbit the nucleus of an atom
Rutherford first identified protons in atomic mass
