1) Ionising refers to how easy it is for the radiation to take electrons from other particles/ atoms, which results in the particles/ atoms becoming ions (an ion is a charged particle)
2)
a) The most ionising is alpha, and the least ionising is gamma
b) Gamma travels the furthest distance in air, and alpha travels the shortest distance in air
3)
a) Two protons and two neutrons
b)
2)
a) The most ionising is alpha, and the least ionising is gamma
b) Gamma travels the furthest distance in air, and alpha travels the shortest distance in air
3)
a) Two protons and two neutrons
b)
c) 2+ or +2
d) Alpha radiation is the most ionising because their size means that they tend to hit other particles, which knocks off electrons from these particles resulting in the particles that the alpha radiation hits becoming ions. Another reason why alpha radiation is strongly ionising is because alpha particles have a charge of 2+.
e) A few centimetres in air
f) Stopped by paper
4)
a) Beta radiation is where a neutron turns into a proton and an electron; the proton is kept in the nuclei of the atom and the electron is fired out of the nuclei at high speed. The electron that is fired out is known as a beta particle
b)
d) Alpha radiation is the most ionising because their size means that they tend to hit other particles, which knocks off electrons from these particles resulting in the particles that the alpha radiation hits becoming ions. Another reason why alpha radiation is strongly ionising is because alpha particles have a charge of 2+.
e) A few centimetres in air
f) Stopped by paper
4)
a) Beta radiation is where a neutron turns into a proton and an electron; the proton is kept in the nuclei of the atom and the electron is fired out of the nuclei at high speed. The electron that is fired out is known as a beta particle
b)
c) A few metres in air
d) Stopped by a sheet of aluminium around 5 mm thick
5)
a) Gamma radiation/ gamma waves have no mass as they are just energy
b)
i) Electromagnetic spectrum (EM spectrum)
ii) Short wavelength
iii) High frequency
c)
d) Stopped by a sheet of aluminium around 5 mm thick
5)
a) Gamma radiation/ gamma waves have no mass as they are just energy
b)
i) Electromagnetic spectrum (EM spectrum)
ii) Short wavelength
iii) High frequency
c)
d) Very long
e) Gamma radiation is stopped by a thick piece of lead or metres of concrete
e) Gamma radiation is stopped by a thick piece of lead or metres of concrete
Questions
1) What does ionising mean?
2)
a) Out of alpha, beta and gamma radiation, which is the most ionising and which is the least ionising?
b) Out of alpha, beta and gamma radiation, which travels the furthest distance in air and which travels the shortest distance in air?
3)
a) What is an alpha particle made from?
b) Write the symbol with the numbers for alpha radiation/ an alpha particle.
c) What is the charge for an alpha particle?
d) Why is alpha radiation the most ionising?
e) What is the range of an alpha particle in air?
f) What stops alpha radiation?
4)
a) Describe what happens in beta radiation.
b) Write the symbol with the numbers for beta radiation/ a beta particle.
c) What is the range of a beta particle in air?
d) What is beta radiation stopped by?
5)
a) Does gamma radiation have any mass? Explain your answer.
b)
i) Gamma radiation/ gamma waves are part of what spectrum?
ii) Do gamma waves have long or short wavelengths?
iii) Do gamma waves have a low or high frequency?
c) Write the symbol with the numbers for gamma radiation.
d) Is the range of gamma radiation/ gamma waves in air very short or very long?
e) What is gamma radiation/ waves stopped by?
1) What does ionising mean?
2)
a) Out of alpha, beta and gamma radiation, which is the most ionising and which is the least ionising?
b) Out of alpha, beta and gamma radiation, which travels the furthest distance in air and which travels the shortest distance in air?
3)
a) What is an alpha particle made from?
b) Write the symbol with the numbers for alpha radiation/ an alpha particle.
c) What is the charge for an alpha particle?
d) Why is alpha radiation the most ionising?
e) What is the range of an alpha particle in air?
f) What stops alpha radiation?
4)
a) Describe what happens in beta radiation.
b) Write the symbol with the numbers for beta radiation/ a beta particle.
c) What is the range of a beta particle in air?
d) What is beta radiation stopped by?
5)
a) Does gamma radiation have any mass? Explain your answer.
b)
i) Gamma radiation/ gamma waves are part of what spectrum?
ii) Do gamma waves have long or short wavelengths?
iii) Do gamma waves have a low or high frequency?
c) Write the symbol with the numbers for gamma radiation.
d) Is the range of gamma radiation/ gamma waves in air very short or very long?
e) What is gamma radiation/ waves stopped by?