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Chem. Review #1 (2)

Rutherford Discovered positively charged nuclear atom.
Chadwick Dicovered the Neutron
Thomson Determined the quantity of the electron's charge and the electron itself.
Goldstein Discovered the proton.
Dalton Came up with the atomic theory
Rutherford Performed the gold foil experiment.
Milikan Perfomed the oil drop experiment.
Mendeleev First period table based on increasing mass.
Henry Moseley Determined hte atomic number of all elements.
Cathode Ray Tube An apparatus that helped scientists discover that atoms contain electrons.
Neutrons Isotops have the same number of protons but different numbers of _________.
Radioactivity The spontaneuos production of rays and particles and energy by unstable nuclei.
Induced Radioactivity When a parent or target isotope is bombarded causing the emission of radiation and the formation of a daughter isotope.
Robert Bohr Scientist that developed the planetary model 0 refining the previous model of the atom to include electrons orbiting the nucleus in energy levels.
Created by: FaithRaquel2015