Chemistry, 07.10.2019 22:40 SavannahP04
Aradioactive nuclide that is used for geological dating has an atomic number of 19 and mass number 40. which is the symbol of this nuclide?
a 19/21 k
b 21/19 k
c 40/19 k
d 19/40 k
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Aradioactive nuclide that is used for geological dating has an atomic number of 19 and mass number 4...
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