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Albert Hall alpha particles appliance Atomic Energy beta decay beta particles bind bomb called cause ionization cells centre chain reaction chapter chromosomes coil course critical mass D.T. reaction damage decay Deuterium Deuterium gas Deuterons earth effect electric charge electric current electron elements emit example explained eye gene fall-out fission process fission products fusion reaction gamma rays gonads Grade graphite half-life happens hazards heat Helium human tissue Hydrogen atom ions irradiated kilowatts kind Lithium magnetic field matter means mesons million degrees mitosis molecule motion of thermal mutations necklace negative charge nuclear power nuclear reactions nucleons nucleus orbits Oxygen Periodic Table pile plasma positively charged produced proton protons and neutrons radiation radio radio-active radio-active isotopes recessive gene released remember rules of genetic speed split Strontium Strontium-90 substances temperature thermal agitation Thorium tons torus touch the walls Tritium Triton tube tumour Uranium X-rays ZETA