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First person to use the term "Atom". Also made the theory that the whole universe was made up of them.
Atoms are indestructible and unchangeable. -
Elements are characterized by the weight of their atoms.
Atoms of the same element are identical.
Atoms of different elements combine in whole number ratios. -
Made the periodic table with atomic mass.
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protons have an equal and opposite charge as an electron.
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Nearly Empty tube.
An electric charge is passed through the tube, Travels from cathode to anode.
Discovered the negative charged particle: the electron. -
Discovered the value for electron charge through the famous oil drop experiment.
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The nucleus of the atom is a dense mass of positively
charged particles.The electrons orbit the nucleus. -
Electrons orbit the nucleus in orbits that have a set
size and energy.The lower the energy of the electron, the lower the
orbit. -
Chadwick is credited with the discovery of neutrons.
