Radiation Flashcards
1
Q
Alpha Particles
A
Positively charged nuclei of helium atoms, consisting of two protons and neutrons.
2
Q
Beta Particles
A
Charged particles (positive or negative) with the same size and mass as electrons.
3
Q
Gamma Rays
A
High-energy electromagnetic radiation produced during nuclear reactions. They have no mass and travel at the speed of light.
4
Q
Half-Life
A
Time taken for half of the radioactive atoms, in an element, to decay.
5
Q
Cosmic Radiation
A
Naturally occurring background radiation from outer space.
