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Structure of Atom

Help learn the structure of the atom.

TermDefinition
Matter __________ always has mass.
Nucleus The central core of an atom is called the __________.
Six So far, scientists have confirmed the existence of __________ different quarks.
John Dalton __________ gathered evidence for the existence of atoms by measuring the masses of elements that reacted to form compounds.
JJ Thomson __________ concluded in his experiment that the particles in the glowing beam had a(n) negative charge because they were attracted to a positive plate which led to him discovering the electron.
Quarks Particles of matter that make up protons and neutrons are __________.
Electron A particle that moves around the nucleus is a(n) __________.
Democritus __________ named the smallest particles of matter atoms.
Ernest Rutherford __________ concluded that an atom's positive charge is concentrated in its nucleus from the gold foil experiment.
Created by: hicklsh
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