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3 Cards in this Set
- Front
- Back
Define atomic number. |
The proton/electron number. Found underneath the symbol of an element. |
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Define atomic mass. |
The total number of protons and neutrons in an atom. Found above the symbol of a element. |
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Define an isotope. |
Two or more forms of the same element that have an equal no. of protons but a different no. of neutrons. |