Nuclear Radiation

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Happens when an atom is...
unstable
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Is measured in...
Becquerel, which means counts per second
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An atom decays into a new atom and emits...
an alpha particle
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It has...
2 protons and 2 neutrons
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It's charge is...
2+
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It has a...
large mass
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Strong...
Ionising Power
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Is blocked by...
paper and thin card and a few cm of air
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An atom decays into a new atom by changing a...
neutron into a proton and electron
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It has one...
electron
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It's charge is...
-1
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It has a...
tiny mass
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Small...
ionising power
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Is blocked by...
meters of air and a few millimetres of aluminium
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After alpha or beta decay, surplus energy is sometimes emitted...
It has a very high frequency and a short wavelength
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It is an...
electromagnetic wave
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Has no...
charge or mass
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Tiny...
ionising power
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Is blocked by...
10cm of lead
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Background Radiation is ionising radiation from...
space (cosmic rays)
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from devices such as x-ray tubes and...
from radioactive isotopes in the environment
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Some of these isotopes are present because of nuclear...
weapons testing and nuclear power stations
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Other reasons could be due to food and drink...
medical, air, and ground
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Other cards in this set

Card 2

Front

Becquerel, which means counts per second

Back

Is measured in...

Card 3

Front

an alpha particle

Back

Preview of the back of card 3

Card 4

Front

2 protons and 2 neutrons

Back

Preview of the back of card 4

Card 5

Front

2+

Back

Preview of the back of card 5
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