4. Atomic masses and periods of the main radionuclides
Table 4 lists the atomic masses and periods of elements that do not have stable isotopes. The isotopes selected are those deemed necessary to calculate the atomic mass of samples whose isotopic composition is abnormal or altered. For more complete data, please refer to the reference published in this treatise.
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Atomic masses and periods of the main radionuclides
Discovering elements and their abundance
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