Shared Flashcard Set

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Chem Atom Scientist/RA Isotopes
Chem
14
Chemistry
10th Grade
11/03/2011

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Cards

Term
Americium-241
Definition
Home smoke detectors and to measure levels of toxic substances in plant samples
Term
Californium-252
Definition
Used to inspect airline luggage for explosives and land mines. Also to gauge moisture levels at construction sites and in farm silos
Term
Technetium-99
Definition
Widely used in nuclear medicine. Injected into patients with cancer. Beta emissions act as a camera and used with computers to highlight tumor growths and abnormalties
Term
Iodine-131
Definition
Diagnose/treat thyroid cancer and Grave's disease. Tracer elements in humans.
Term
Plutonium-238
Definition
Fuel source for over 20 NASA spacecraft missions.Used to power a long-lasting spacecraft battery
Term
Carbon-14
Definition
Used to date historic organic matter
Term
Democritus
Definition
Theorized matter is made of atoms
Term
John Dalton
Definition
Proved Democritus's theory. Law of multiple proportion
Term
Antoine Lavoisier
Definition
Law of Conservation
Term
Joseph Proust
Definition
Law of Composition
Term
J.J. Thomson
Definition
Cathode rays to discover electron
Term
Robert Millikan
Definition
Oil drop experiment to find charge of electron
Term
Ernest Rutherford
Definition
Modern model of atom. Gold foil. Discovered the nucleus.
Term
Marie Curie
Definition
Studied uranic rays. Discovered new elements that emitted these rays
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