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22 Cards in this Set
- Front
- Back
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atom |
The basic particle from which all elements are made |
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nuclues |
the central core of an atom which contains protons and neutrons |
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electron |
a tiny negatively charged particle that lives on the outside of a nucleus in an atom |
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proton |
positively charged particle inside the nucleus of an atom |
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neutron |
particle with no charge inside a nucleus |
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energy level (orbital, shell) |
Electron highway outside of nucleus |
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atomic number |
number of how many atoms an element has |
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isotope |
difference between electrons and protons in an element |
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mass number |
weight of an atom (average) |
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atomic mass |
weight of an atom |
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period |
vertically numbered rows with elements |
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group |
horizontally numbered rows with elements |
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metal |
solid elements |
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nonmetal |
gas elements |
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metaloid |
gas and solid elements |
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alkali metal |
group 1 |
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alkiai earth metal |
group 2 |
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transition metal |
group 3-12 |
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halogen |
group 17 |
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noble gas |
group 17 |
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semi conductor |
conducts electricty |
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APE MAN |
atom=proton=electron mass # =Atomic #=neutrons |
