Polonium-209 decays to form Lead-205. What type of radiation has been released?

Choose 1 answer

alpha

beta

gamma

neutron

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Polonium-209 decays to form bismuth-209. What type of radiation has been released?

Choose 1 answer

alpha

beta

gamma

neutron

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Uranium-238 decays, releasing alpha radiation. What will be the mass of the new atom formed? Uranium-238 has 92 protons and 146 neutrons.

Drag the images into the correct place.

Correct Answer

Incorrect Answers

238

234

242

88

92

142

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How do we represent beta radiation?

Choose 1 answer

mass of 0, proton number of 0

mass of 0, proton number of -1

mass of 1, proton number of 0

mass of 4, proton number of 2

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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.