Define unified atomic mass unit.
The unified atomic mass unit (a.m.u) is roughly equal to the mass of one nucleon.
Calculate the mass of a nucleus of uranium−238. Give your answer to 3 significant figures.
You may take 1 a.m.u to be 1.66 × 10−27 kg.
Einstein's Theory of Relativity showed that mass could be converted into energy, and energy into mass. This is summarised in the equation:
Define the terms in the equation and give the units:
Calculate the energy (in J) released if all of the mass in the nucleus of uranium−238 were converted into energy.
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