FAMOUS SCIENTISTS: LC CHEMISTRY
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1 FAMOUS SCIENTISTS: LC CHEMISTRY Study online at quizlet.com/_6j SVANTE AUGUST ARRHENIUS 4. ANTOINE HENRI BECQUEREL He developed a theory of acids and bases on how they form ions in solution. He also explained the fact that most reactions require added heat energy to proceed by formulating the concept of activation energy. 2. AMEDEO AVOGADRO He is most noted for his contributions to molecular theory, including a law named after him. In tribute to him, the number of atoms, molecules, ions or other particles in 1 mole of a substance, (30) 1023, is known as a constant that also bears his name. SWEDISH ITALIAN Discover of radioactivity along with Marie Curie and Pierre Curie. 5. NIELS HENDRIK DAVID BOHR Made some of the first contributions to understanding atomic structure and quantum mechanics. 6. ROBERT BOYLE DANISH JOHANN JAKOB BALMER Devised an empirical formula for working out the visible spectral lines (wavelength) of the hydrogen atom Developed the Law (named after him) which states that for a fixed amount of an ideal gas kept at a fixed temperature, P [pressure] and V [volume] are inversely proportional (while one increases, the other decreases. IRISH
2 7. LOUIS DE BROGLIE Developed the theory of electron waves and stated that any moving particle or object had an associated wave. 10. JAMES CHADWICK English Nobel laureate in physics awarded for his discovery of the neutron. 8. ROBERT WILHELM BUNSEN JACQUES ALEXANDRE CÉSAR CHARLES Developed the laboratory heating apparatus named after him and with Gustav Kirchhoff discovered caesium (in 1860) and rubidium (in 1861). Formulated the law which bears his name and which states that, at constant pressure, the volume occupied by a fixed weight of gas is directly proportional to the absolute temperature ANDERS CELSIUS He proposed the temperature scale where the boiling point of water is 100 degrees WILLIAM CROOKES He was a pioneer of vacuum tubes, inventing the tube, which bears his name. Wilhelm Röntgen discovered x- rays with the Crookes tube in 1895 SWEDISH
3 13. JOHN DALTON He is best known for his pioneering work in the development of modern atomic theory and his research into colour blindness. 16. FRITZ HABER Received the Nobel Prize in Chemistry in 1918 for his development for synthesizing ammonia, important for fertilizers and explosives STEPHEN WILLIAM HAWKING DANIEL GABRIEL FAHRENHEIT Who is best known for inventing the alcohol thermometer (1709), the mercury thermometer (1714), and for developing a temperature scale now named after him Key scientific works to date have included providing, with Roger Penrose, theorems regarding gravitational singularities in the framework of general relativity, and the theoretical prediction that black holes should emit radiation (Hawking radiation) GERMAIN HENRI HESS 15. JOSEPH LOUIS GAY - LUSSAC Known mostly for two laws related to gases, and for his work on alcoholwater mixtures, which led to the degrees Gay-Lussac used to measure alcoholic beverages in many countries. POLISH Developed Hess's Law that states that in a series of chemical reactions, the total energy gained or lost depends only on the initial and final states, regardless of the number or path of the steps. 19. JOSEPH JOHN THOMPSON He is credited for the discovery of the electron and of isotopes, and the invention of the mass spectrometer SWISS
4 20. JOSEPH PRIESTLEY He is usually credited with the discovery of oxygen, having isolated it in its gaseous state ANTOINE - LAURENT DE LAVOISIER He stated the first version of the law of conservation of mass, recognized and named oxygen (1778) and hydrogen (1783), helped construct the metric system and wrote the first extensive list of elements JAMES PRESCOTT JOULE Discovered the theory of conservation of energy which led to the development of the first law of thermodynamics. The Joule is named after him. 24. MARIE SKLODOWSKA CURIE She was a pioneer in the field of radioactivity and the first person honored with two Nobel Prizes POLISH WILLIAM THOMSON (LORD KELVIN) 25. VLADIMIR VASILEVICH MARKOVNIKOV Widely known for developing the basis of absolute zero. NORTHERN IRISH Best known for Markovnikov's rule, which he developed in 1869 to describe addition reactions of H-X to alkenes. RUSSIAN
5 26. DMITRI IVANOVICH MENDELEEV 29. JOHN WILLIAM STRUTT (LORD RAYLEIGH) Credited as being the creator of the first version of the periodic table of elements and using it to predict the properties of elements yet to be discovered. RUSSIAN Discovered the element argon. He also discovered the phenomenon now called Rayleigh scattering, explaining why the sky is blue. 27. LINUS CARL PAULING Worked on chemical bonding and many of his contributions like hybridization and electronegativity have become part of standard chemistry textbooks. He also discovered the alpha helix and beta sheet structure of proteins. 28. MAX KARL ERNST LUDWIG PLANCK Considered to be the founder of the quantum theory AMERICAN WILHELM CONRAD RÖNTGEN Produced and detected electromagnetic radiation in a wavelength range today known as x- rays 31. ERNEST RUTHERFORD Discovered the concept of radioactive half life and also differentiated and named alpha and beta radiation NEW ZEALANDER
6 32. JOHANNES DIDERIK VAN DER WAALS Famous for his work on an equation to determine the state of matter for gases and liquids in different conditions DUTCH ERWIN RUDOLF JOSEF ALEXANDER SCHRÖDINGER Achieved fame for his contributions to quantum mechanics, especially the Schrödinger equation. AUSTRIAN HENRY MOSELEY Provided the first experimental proof of Bohr's theory. Organised the periodic table based on atomic number rather than atomic mass and solved the Tellurium-Iodine problem
Discovered the electron
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