Which of the uses below will benefit from the isotope chosen having a long half-life?

Choose 1 answer

detecting cracks in underground pipes

measuring the thickness of aluminium in an aluminium mill

injecting an isotope to use for medical diagnosis

using a radioactive dye to trace the movement of water within a plant

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Which three properties will be important when choosing an isotope to use for medical diagnosis? The isotope will be injected into a patient.

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Correct Answers

Incorrect Answers

easily blocked by air and skin tissue

highly ionising

highly penetrating

long half-life

low ionising power

short half-life

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Which type of radiation is most suitable to use in paper production?

Choose 1 answer

alpha

beta

gamma

neutron

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Which type of radiation is most suitable to use within a smoke detector?

Choose 1 answer

alpha

beta

gamma

neutron

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Fill in the blanks.

Select the missing words in the text.

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Answer incorrect

Look at the slide below to work out the answer.