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Last updated 12:00 PM on 9/18/22
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6 Terms
1
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atom
basic unit of matters, consists of nucleus surrounded by a cloud of negatively charged electrons
2
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where is the nucleus?
is at the centre of the atom and contains the protons and neutrons
3
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nucleons
protons and neutrons are collectively known as the nucleons
4
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the mass of the atom
is concentrated in the nucleus
5
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nuclide
group of atoms with the same protons number and the same nucleon number
6
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isotopes
group of atoms with the same protons number but different nucleon numbers
