S1.2 SL - The nuclear atom

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Chemistry

IB Chemistry (SL)

7 Terms

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Relative atomic mass
The average mass of an atom relative to an atom of Carbon-12.
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Mass number
Total protons and neutrons in a nucleus.
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Atomic number
Number of protons in a nucleus.
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Isotope
Atoms of the same element (same no. protons), but with differing mass numbers (different numbers of neutrons).
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Negative ion
Contains more electrons than protons.
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Positive ion
Contains more protons than electrons.
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Properties that differ between isotopes of the same element.
Mass, density, boiling/melting point