binding energy
mass–energy equivalence
radioactive
alpha
beta (β)
gamma
parent
daughter
electron capture (EC)
beta particle
electron-antineutrino
weak nuclear force
positron
antiparticle
electron-neutrino
gamma ray
decay constant
activity
becquerel (Bq)
half-life
exponential decay
nuclear fission
nuclear fusion
disintegration energy
exothermic
endothermic
inertial reference frame
relativistic factor
length contraction
rest energy
total energy
general relativity
Equivalence Principle
precession of Mercury
gravitational time dilation