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Answer the questions below (c) and (b) ( 12) (b The equation below represents a radioactive decay that occurs ) spontaneously. 226Ra I 222R. +

Answer the questions below (c) and (b)

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( 12) (b The equation below represents a radioactive decay that occurs ) spontaneously. 226Ra I 222R". + 4H3 (i) Name the type of radioactive decay. (ii) Why does radioactive decay occur? I 2 l (c The table below shows three elements' atomic mass units (u). 2w" m Additional Information: 1 u = 1.66 x 10'27 kg (i) Determine the mass defect in kg. (ii) Calculate the energy released from the radioactive decay. (6)

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