What did Aristotle do quizlet?
In addition to his biological studies, Aristotle virtually created the sciences of logic and linguistics, developed extravagant theories in physics and astronomy, and made significant contributions to metaphysics, ethics, politics, and aesthetics.
What did Thomson contribute to atomic quizlet?
What major contribution did Thomson make to the Atomic Theory? Discovered that atoms can be split into smaller particles (protons and electrons).
What is the name of Thomson’s experiment quizlet?
Cathode Ray Experiment
What did the alpha scattering experiment reveal?
Rutherford’s gold foil experiment demonstrated that almost all of the mass of an atom is in a tiny volume in the center of the atom which Rutherford called the nucleus. This positively charged mass was responsible for deflecting alpha particles propelled through the gold foil.
What’s the name of John Dalton’s theory?
law of multiple proportions
What atomicity means?
Atomicity is defined as the total number of atoms present in a molecule. For example, each molecule of oxygen (O2) is composed of two oxygen atoms. So atomicity of oxygen is 2.In older contexts, the term atomicity is sometimes used in the same sense as valency.
What is a Dalton?
The dalton or unified atomic mass unit (symbols: Da or u) is a unit of mass widely used in physics and chemistry. It is defined as 1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest.
What is Dalton size?
Measure of molecular weight or molecular mass. One molecular hydrogen molecular atom has molecular mass of 1 Da, so 1 Da = 1 g/mol. Proteins and other molecular macromolecule molecular weights are usually measured in molecular kDa or kD (kilodaltons) – 1000 Da.
Is Amu equal to g mol?
The mass of a single atom of an element [amu] is numerically equal to the mass [g] of 1 mol of that element, regardless of the element. 1 atom of 12 C has a mass of 12 amu 1 mol 12 C has a mass of 12 g. Q: How many moles of water are in a liter of water, if 1 liter = 1 kilogram water.
What is Dalton known for?