Aston, Francis William (1877 - 1945)
- Meeting of Great Minds. N. R. // Chemical Heritage;Winter2008, Vol. 26 Issue 4, p17
The article looks at the collaborative works and professional relationship of chemists and physicists Francis William Aston and Ernest Rutherford. Aston and Rutherford both won the Nobel Prize in Chemistry for their contributions to the field, with Aston's discovery of isotopes and the "whole...
- Playboy of the atom world. Chown, Marcus // New Scientist;9/6/2003, Vol. 179 Issue 2411, p46
Researcher Francis Aston was the son of a wealthy Victorian businessman who traveled the world in luxury, indulging in all the latest pastimes. Aston's interest in weighing atoms had been triggered by J.J. Thomson, the discoverer of the electron. When Aston landed a job as his assistant in 1910,...
- Dalton, John (1766 - 1844). // Hutchinson Dictionary of Scientific Biography;2005, p1
English chemist, one of the founders of atomic theory. Some of his proposals have since proved to be incorrect, but his chief contribution was that he channeled the thinking of contemporary scientists along the correct lines, particularly in his method of using established facts to explain a new...
- Positive Effect. Voelkel, James R. // Chemical Heritage;Spring2013, Vol. 31 Issue 1, p19
The article discusses physicist and Nobel Prize winner J. J. Thomson's publication of the book "Rays of Positive Electricity and Their Application to Chemical Analyses" in 1913. Improvements made by Thomson to an apparatus previously described by Eugen Goldstein in 1886 to learn more about the...
- Berzelius, JÃ¶ns Jakob (1779 - 1848). // Hutchinson Dictionary of Scientific Biography;2005, p1
Swedish chemist, one of the founders of the science in its modern form. He contributed to atomic theory, devised chemical symbols, determined atomic weights, and discovered or had a hand in the discovery of several new elements. He became renowned as a teacher and gained a reputation as a world...
- DalÂ·ton. // American Heritage Student Science Dictionary;2009, p92
A profile of British chemist John Dalton is presented. His work on the properties of the atmosphere and gases led him to formulate the atomic theory. The theory stipulated that all matter is made up of combinations of atoms and that chemical reactions take place through the rearrangement of atoms.
- Modeling of metal-humate complexation based on the mean molecular weight and charge of humic substances: Application to Eu(III) humate complexes using ion exchange. Šamberg, K.; Beneš, P.; Mizera, J.; Dolanský, J.; Vopálka, D.; Chalupská, K. // Journal of Radioanalytical & Nuclear Chemistry;Oct2003, Vol. 258 Issue 2, p329
A general model, the so called Mean Molecular Weight Model (MMWM), of complexation of metal cations (Mez+) with macromolecular polyanions of humic acid (HAp-) is proposed. The model is based on the results of previous studies of the electrophoretic mobility of humate complexes and assumes that...
- Hermann Stoll. Dolg, Michael; Botschwina, Peter // Theoretical Chemistry Accounts: Theory, Computation, & Modeling;Oct2005, Vol. 114 Issue 4/5, p253
Profiles Hermann Stoll, a physicist and theoretical chemist to whom the September 26, 2005, issue of the "Theoretical Chemistry Accounts" periodical is dedicated. Background information on Stoll; Key contributions to theoretical chemistry and physics; Predilections.
- Dumas, Jean Baptiste AndrÃ© (1800 - 1884). // Hutchinson Dictionary of Scientific Biography;2005, p1
French chemist who made contributions to organic analysis and synthesis, and to the determination of atomic weights (atomic weights) through the measurement of vapor densities.