Flashcards in Radioactivity and Background Radiation Deck (8):
What are isotopes? What happens to their atomic/mass number?
atoms with the same number of protons but a different number of neutrons
therefore same atomic number, different mass number
Give 2 examples of Carbon isotopes
What happens if an atom/isotope is radioactive?
They decay into other elements and give out radiation
Radioactivity is affected/unaffected by physical conditions or chemical bonding etc.
Radioactivity is a totally [ ] process
Radioactivity comes from unstable isotopes, name some common things that give out radiation (4)
Air, food, building materials, rocks
Radiation from space, called [ ], come mostly from the [ ]