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Sir Robert Boyle
Boyle came up with the gas laws and was the first to discover small particales forming molecules. He also showed differences between compounds and mixtures. -
Death of Alchemy
Aristotle's four element theory and the publishing of "The Skeptical Chemist", by Robert Boyle, were big parts of the failure in the early form of chemisty. -
John Dalton's theory
Dalton said all matter was made up of atoms, the atoms have unique charateristics and weight, and there are three types of atoms. (simple, compound, and complex) -
Joseph John Thomson
Thomson won the Atoms Prize for his interest and research on atomic structure. "Treatse on the Motion of Vortex Rings" won him this prize. -
The discovery of the proton
Eugene Goldstein found positive particles using hydrogen gas in a tube. He found it had an equal and opposite charge to the electron. He then named it the proton. -
X-Rays
Wilhelm Roentgen discovered x-rays by accident while studying cathode rays. He found out that rays that cause fluorescent are able to pass through glass, cardboard, and walls. These rays were then called x-rays. -
Earnest Rutherford
Rutherford started researching in New Zealand about the magnetic properties of iron exposed to high-frequency oscillations. He wrote a thesis from this research called "Magentization of Iron by High-Frequency discharges. -
Protons within a nucleus
Henry Moseley tried to use x-rays to find the number of protons in the nucleus of an atom but was not successful because nobody had discovered the neutron yet. -
Niels Bohr
He received the nobel prize for his work on the structure of atoms.
