Rutherford's Gold Foil Experiment (feb 1, 1908 – jan 1, 1921)
Description:
Rutherford's experiment found that:1. All atoms contain a nucleus, which is small (<1% of the space of the atom), but is massive (>99% of the mass of the atom comes from the nucleus)
2. The nucleus is positive, as it repelled alpha-particles
Added to timeline:
Date:
feb 1, 1908
jan 1, 1921
~ 12 years