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KM Chem chap 3
chapter 3 vocab
Term | Definition |
---|---|
Atomic Number | The number of protons in each atom of an element |
Isotopes | Atoms of the same element that have different masses |
Nuclide | General term for a specific isotope of an element |
Atomic mass unit | An exact 1/12 the measure of a carbon-12 atom |
Average atomic mass | The weighted average of the atomic masses of the naturally occuring isotopes of an element |
Mole | The amount of a substance that contains as many particles as there are in exactly 12g of carbon-12 |
Avogadro's number | Numbers of atoms in a mole of a pure substance 6.02*10*23 |
Molar Mass | The mass of one mole of a pure substance |