Periodic table
en
fr
ar
es
pt
id
List
Compare
Tables
Quiz
Tools
Printables
Periodic table
›
selenium
›
Se-76
Selenium-76 (Se-76)
Identity
Protons
34
Neutrons
42
Mass number
76
Mass
75.919 ± 0.017 u
Mass excess
-75.252 MeV
Spin
0+
Stability
stable
Natural occurrence
9.230 %
of selenium
Produced by
Ge-76
As-76
All isotopes of selenium