In 1661, Boyle published the Skeptical Chymist (the scientific method). Because of Robert Boyle's new method of experimentation new elements were found, and Aristotle's ideas about matter were done away with.
Recognizes and names oxygen, and notices its importance in its role in combustion. He also discovered the first modern system of chemical nomenclature. Creates the first concise definition of the law of conservation of mass and stoichiometry.
Helped in the discovered oxygen as well as organic acids. Carl isolated oxygen and called it "fire air".
Discovered suphler dioxide and oxygen gas.
Disproved Berthollet with the law of definite proportions, the Proust's law.
He made his own atomic theory.
Dalton's Atomic Theory
1. All matter is composed of extremely small particles called atoms, which cannot be broken into smaller particles, created, or destroyed.
2. The atoms of any given element are all identical to each other and different from the atoms of other elements.
3. Atoms of different elements combine in specific ratios to form compounds.
4. In a chemical reaction, atoms are separated, rearranged, and recombined to form new compounds.
Julius plucker made contributions to the study of analytical geometry. He also helped in the investigation of cathode rays, this led to the discovery of the electron.
Worked on spectroscopy. He helped with vacuum tubes, and invented the Crookes tube and the Crookes radiometer.
Discovered radioactive isotopes.
Modified Crookes tubes and realized that the tubes rays were negative.
Discovered that radioactive elements decay creating alpha, beta, and gamma radiation.
Discovered the nucleus.
Verified Albert Einstein's explanation of the Brownian motion phenomenon and therefore confirmed the atomic nature of matter.
Determined the mass and charge of a single electron
Experimented with gold atoms, this was discovered under the direction of Rutherford.
Co-inventor of the Geiger counter.
Discovered the neutron.