Isotope nominal mass: periodicity

Isotope nominal mass

This gives the nominal masses of naturally occurring isotopes for each element.

Units

None

Notes

Literature sources

1. K.J.R. Rosman and P.D.P. Taylor for International Union of Pure and Applied Chemistry in Isotopic Compositions of the Elements 1997, Pure and Applied Chemistry, 1998, 70, 217. [Copyright 1997 IUPAC]

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• Periodicity