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| what is matter made up of? |
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| what are living things made up of? |
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| atoms are the basic unit of? |
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| he came up with the word "atom" |
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| came up with the idea that all matter could be broken down into small particles which could not be broken down any further he called this the atom? |
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| atoms are made up of what? |
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| what charge does a proton have? |
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| what is a protons amu (atomic mass unit?) |
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| what does the amount of protons tell you about the element? |
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| what kind of charge does a neutron have? |
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| protons plus neutrons equal what |
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| you are always going to have the same amount of what in an element? |
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Definition
| electrons, protons, and atomic number |
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| atoms of the same element with a different number of neutrons |
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