Radiation worksheet.

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The diagram shows an experiment in which three different materials were placed in front of three radioactive sources. Remember that alpha particles have a positive charge, beta particles have a negative charge and gamma rays have no charge.

1       Complete the table of radioactive penetration using the diagram above. For the last two columns, use the words ‘highly’, ‘partly’ or ‘slightly’.

Radiation

Blocked by

Penetrating

Ionising

alpha

 piece of paper

slightly 

highly 

beta

 aluminium sheet

 partly

 partly

gamma

 lead

 highly

 slightly

2       The boxes show different types of radiation that unstable nuclei can emit.

alpha particle

P, 1, +

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