Radioactivity Flashcards
1 A i)
B
1 A ii)
Radon Gas
1 A iii)
In some areas like Cornwall there is more granite which is more radioactive, so therefore the people living in Cornwall have a higher exposure to radiation
1 C i)
180/2= 90 = 8 Days
1 C ii)
17
2 a)
The steam flows through pipes and turbines to transfer thermal to kinetic
2 b)
Neutron hits the nucleus of uranium-235, it splits in two which releases energy, two neutrons come and hit two more nuclei and the process repeats
2 c)
stop neutrons from travelling between fuel rods and therefore change the speed of the chain reaction
2 d)
A
3 b)
There is a nucleus in the centre with a mass greater than the alpha particles, most of the atom is empty
3 c)
4
3 d)
0,-1
4 a i)
Atoms of the same element that have the same number of protons but a different number of neutrons
4 a ii)
The radium decays a lot quicker than the thorium because its half life is lower
4 a iii)
B
