74Se-Selenium
74Se has 34 protons and 40 neutrons.
74Se is a stable isotope.
The mass excess of 74Se is -72213.21 with an uncertainty of ±0.015.
The mass was measured using a Penning Trap and the related equations include:
Influence Equations
100% 74Se-74Ge 1
Reference
1. R.J. Ellis, R.C. Barber, G.R. Dyck, B.J. Hall, K.S. Sharma, C.A. Lander, H.E. Duckworth (1985) Precise atomic mass difference determinations
between some stable isotopes of Ge, As, and Se Nuclear Physics A 435(1)
https://www.sciencedirect.com/science/article/pii/0375947485903008