Alpha, Beta and Gamma Rays

Fission

Powers nucleur subs and power-stations.

In Reactor:

Chain reaction nuclei split, release energy as heat.

Heat used to heat water in steam turbine.

Fuel usually Uranium-235 and Plutonium-239

Slow moving neutron absorbed by fuel: nucleus splits giving out 2/3 neutrons.

Neutrons hit other nuclei which split and keep chain reaction going.

When large atom splits - forms 2 new lighter elements - radioactive becuase have different No. of neutrons so nucleur power produces huge amounts of nucleur material.

Disposal is hard and costs a lot

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