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(Atomic Structure (Protons (+) (Discovered in 1886 (Eugen Goldstein),…
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Determining an Atom
Atomic Number
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in a neutral atom, the atomic number = the # of protons and 3 of electrons.
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Isotopes
Atoms with the same number of protons, but different numbers of neutrons.
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The Atom
Dalton's Atomic Theory
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Atoms of the same element are identical. The atoms of any one element are different from those of any other element.
Atoms of different elements can physically mix together or can chemically combine in simple whole number ratios to form compounds
Chemical Reactions occur when Atoms are separated, joined or rearranged. Atoms of one element. However
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