Chemistry paper 1/6
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Last updated 1:51 PM on 4/8/26
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7 Terms
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Atom
The smallest part of an elements that still retains its properties.
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Proton
A positively charged particle found in the nucleus
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Neutron
A neutral particle found in the necleus
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Electron
A negatively charged particle that orbits the necleus
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Atomic Number
The number of protons in an atom
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Mass number
The total number of protons and neutrons.
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Isotope
Atoms of the same element with different numbers of neutrons