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Q 1/17
Score 0
What is radioactive decay?
60
controlled emission of radiation due to the loss of electrons in an atom
random emission of radiation from the nucleus of an atom
random emission of radiation from the electrons of an atom
decrease in the rate of radiation from an atom
Q 2/17
Score 0
Which of these is NOT one of the three types of nuclear radiation?
60
alpha
microwave
gamma
beta
17 questions
Q.
What is radioactive decay?
1
60 sec
Q.
Which of these is NOT one of the three types of nuclear radiation?
2
60 sec
Q.
What is gamma $\gamma$ radiation?
3
60 sec
Q.
Which type of nuclear radiation is the most ionising?
4
60 sec
Q.
Which materials can stop beta radiation?
5
60 sec
Q.
Which materials can stop alpha radiation?
6
60 sec
Q.
Which materials can stop gamma radiation?
7
60 sec
Q.
Which type of radiation causes both the mass and charge of the nucleus to decrease?
8
60 sec
Q.
Which type of radiation does not cause the mass to change but does cause the charge of the nucleus to increase?
9
60 sec
Q.
Which type of nuclear radiation does not cause a change in the structure of the nucleus when it is emitted?
10
60 sec
Q.
11
60 sec
Q.
What is radioactive activity?
12
60 sec
Q.
13
60 sec
Q.
What is the term used to describe the number of decays recorded each second by a detector, e.g. Geiger-Muller tube?
14
60 sec
Q.
What is the term used to describe the time taken for half the unstable nuclei to decay or the time taken for the count rate to halve of a radioactive source?
