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15 Cards in this Set
- Front
- Back
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Atom |
Tiny neutral particles Smallest component of an element that has the properties of that element |
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Electron |
Negatively charged particle that orbits the atoms center |
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Protons |
Positively charged particle found in center of the atom |
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Nucleus |
Dense center region of atom |
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Neutrons |
Another particle in the nucleus with charge similar to a proton |
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Isotope |
Atoms of the same element that differ in number of neutrons |
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Energy levels |
discrete region around the nucleus where electrons exis |
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Valence electrons |
Outer energy level of atom |
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Bohr model |
A diagram used to depict the shape and structure of an atom |
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Atomic mumber |
# of protons; determines what element it is |
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Chemical symbol |
One or two letters combination uppercase and lowercase hat represent element |
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Mass number |
number of protons and neutrons added together |
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Atomic mass |
Average of all isotopes |
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Five guys |
Democritus- atom theory Thompson- electrons Rutheferd- nucleus with protons Chadwick - neutrons Bohr- described atom structure |
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You’re done |
Hooray |
