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18 Cards in this Set
- Front
- Back
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Matter |
made up of atoms which join together to form chemicals with different characteristics. chemical characteristics determine physiology at the molecular and cellular level. |
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Name the 3 Subatomic Particles |
Proton, Neutron, Electron |
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Proton |
Positive Charge, 1 mass unit |
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Neutron |
Neutral charge, 1 mass unit |
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Electron |
Negative Charge, Low mass |
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Atomic Structure Includes these 3 things |
Atomic Number, Nucleus, Electron Cloud |
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Atomic Number |
the number of protons in the nucleus of an atom which determines the chemical properties of an element and its place in the periodic table |
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Nucleus |
Contains Protons and neutrons |
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Electron Cloud |
contains electrons |
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Elements are determined by |
atomic number of an atom |
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The atomic number is |
the number of protons |
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Elements are the |
most basic chemicals |
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Isotopes are |
the specific version of an element based on its mass number |
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Mass Number |
number of protons plus the number of neutrons |
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Why are neutrons different? |
the number of protons determines the element |
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Atomic Weight |
Exact mass of all particles |
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How is atomic weight measured |
in moles |
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Atomic weight is the average of |
mass numbers of the isotopes |
