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Chemistry Yr12
Module 2 Foundations in Chemistry
2. Atoms, ions and compounds
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Cards (16)
Relative
isotopic
mass
The
mass
of an atom relative to
1/12
of the
mass
of an
atom
of
carbon-12.
Isotope
Atoms of the same
element
that have the same number of
electrons
and
protons
, but a different number of
neutrons
and different
masses.
Mass to charge ratio
Relative
mass
of an
ion
/ relative
charge
of an
ion
Hydroxide ion
OH-
Nitrate
ion
NO3-
Nitride
ion
NO2-
Ammonium
ion
NH4+
Ammonia
ion
NH3+
Hydrocarbonate ion
HCO3-
Carbonate
ion
CO32-
Manganate ion
MnO4-
Sulphate
SO42-
Sulphite ion
SO3 2-
Dichromate
ion
Cr2O2 2-
Phosphate
ion
PO4 3-
Relative
isotopic mass (
Ar
) formula
Ar = (
relative isotopic mass
x1 %
abundance
)+ (
relative isotopic mass
x2 %
abundance
) /
100