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Robert Boyle
In the mid 1600's, Robert Boyle studied the relationship between the pressure p and the volume V of a confined gas held at a constant temperature. Boyle observed that the product of the pressure and volume are observed to be nearly constant. The product of pressure and volume is exactly a constant for an ideal gas. -
Antoine Lavoisier
"Father of modern chemistry," was a French nobleman prominent in the histories of chemistry and biology. He named both oxygen and hydrogen and predicted silicon. -
John Dalton
After describing experiments to ascertain the pressure of steam at various points between 0 and 100 °C (32 and 212 °F), Dalton concluded from observations on the vapour pressure of six different liquids, that the variation of vapour pressure for all liquids is equivalent, for the same variation of temperature, reckoning from vapour of any given pressure. -
Joseph Louis Gay-Lussac
Joseph Louis Gay-Lussac was a French chemist and physicist. He is known mostly for two laws related to gases, and for his work on alcohol-water mixtures, which led to the degrees Gay-Lussac used to measure alcoholic beverages in many countries. -
Dmitri Mendeleev
Dmitri Ivanovich Mendeleev was a Russian chemist and inventor. He formulated the Periodic Law, created his own version of the periodic table of elements. -
J.J. Thomson
Sir Joseph John "J. J." Thomson, OM, FRS was a British physicist. He is credited with discovering electrons and isotopes, and inventing the mass spectrometer. -
Marie Curie
Wilhelm Roentgen discovered the existence of X-rays, though the mechanism behind their production was not yet understood. In 1896, Henri Becquerel discovered that uranium salts emitted rays that resembled X-rays in their penetrating power. He demonstrated that this radiation, unlike phosphorescence, did not depend on an external source of energy, but seemed to arise spontaneously from uranium itself, Marie decided to look into uranium rays as a possible field of research for a thesis She used an -
Abu Mūsā Jābir ibn Hayyān
His study of citric acid, tartaric acid, acetic acid, arsenic, sulfur, mercury, antimony & bismuth. The introduction of the word "alkali" and extensive study of such substances.