apr 1, 1911 - 1911 AD: Following closely in 1911, a scientist, Earnest Rutherford designed an experiment that founded the protons and the nucleus. The protons had a (+) charge and was placed in the middle of the atom, called the nucleus and the electrons encircled the nucleus, the rest mostly being empty space. His model was named the Plum Pudding model.
Added to timeline:
Date:
apr 1, 1911
Now
~ 114 years ago