5-Radioactivity Flashcards
0
Q
Mass and charge of stuff in particles
A
You should already know from chemistry.
1
Q
What are atoms made up of
A
You should know but:
Protons, neutrons and electrons.
2
Q
What are isotopes?
A
Atoms of the same element with different numbers of neutrons.
3
Q
What is background radiation?
A
Radiation that occurs naturally around us.
4
Q
What is background radiation made up of?
A
Mostly radon gas.
Medical, mainly X-rays.
Nuclear industry, small part.
From food.
From rock and soil and building materials.
Cosmic rays from outer space and the sun.
5
Q
What is an alpha particle?
A
A helium nucleus, two protons and two neutrons.
