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Metadata

Data

English[en]
The mass number (A), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus.
Finnish[fi]
Massaluku (tunnus A) on atomin ytimessä olevien nukleonien lukumäärä eli protonien ja neutronien lukumäärien summa[1].

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