Radioactive decay Flashcards
1
Q
What happens during beta emission?
A
A neutron turns into a proton and creates an electron
1
Q
What happens during positron emission?
A
A proton turns into a neutron and a positron is created
2
Q
What happens during neutron emission?
A
A neutron is lost from the nucleus
3
Q
What 3 isotopes can hydrogen exist in?
A
Protium
Deuterium
Tritium
4
Q
What can gamma particles be stopped by?
A
A few centimetres of lead or concrete
5
Q
What can stop beta particles?
A
Aluminium
6
Q
how can radiation be used to setrilise food?
A
kills cells, so it’ll kill all microbes on the food
7
Q
what is the symbol for electric charge?
A
Q
8
Q
what is charge measured in?
A
coulombs
9
Q
what is charge carried by in an electric circit
A
free,or de-localised electrons
10
Q
A
