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Chapter 12 student - Chapter 12 Atoms and the periodic...

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Chapter 12 Atoms and the periodic table NOT PHYSICS
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Atoms Atoms- the smallest particle of an element that can exist either alone or in combination Atoms are made up of 3 smaller subatomic particles- electrons, protons, and neutrons
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Electron- an extremely small, negatively charged subatomic particle found outside the atomic nucleus Proton- a positively charged subatomic particle of the atomic nucleus Neutron- An electrically neutral subatomic particle of the atomic nucleus.
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Atomic nucleus- the dense positively charged center of every atom
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Elements- any material that is made up of only one type of atom Periodic table- A chart in which all known elements are listed in order of atomic number Atomic symbol- An abbreviation for an element or atom
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Atomic number- A count of the number of protons in the atomic nucleus Nucleon- Any subatomic particle found in the atomic nucleus. Another name for a proton or neutron
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Isotopes Isotopes- Any member of a set of atoms of
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Chapter 12 student - Chapter 12 Atoms and the periodic...

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