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11 Cards in this Set
- Front
- Back
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Atom |
the smallest unit of an element that has the properties of that element |
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Element |
a pure substance that cannot be broken down into simpler substances by chemical reactions |
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Matter |
material that has mass and takes up some amount of space |
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Mass |
the amount of matter in an object |
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Neutron |
a subatomic particle with no electric charge, located within the nucleus of the atom |
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Proton |
a subatomic particle with a positive charge that is located in the nucleus of an atom |
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Electron |
a subatomic particle with a negative charge, found in the electron cloud region of the atom |
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Nucleus |
the center of an atom containing protons and neutrons |
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Electron Shell |
the path or orbit electrons follow around the nucleus of an atom |
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Ion |
electrically-charged particle (positive or negative) due to gaining or losing electrons |
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Isotope |
an atom of the same element that has a different number of neutrons in its nucleus and , therefore, a different mass |
