Uses of radioisotopes
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Name six uses of radioisotopes.
Treatment of deep-seated tumors Treatment of skin cancer Tracer for thyroid function Carbon dating Energy production Domestic smoke alarms
Why can radioisotopes be used for the treatment of deep seated tumours?
Gamma emitter can reach tumors deep in the body.
Why can radioisotopes be used for the treatment of skin cancer?
Beta emitter can treat skin cancer without damage to deeper tissue.
Why can radioisotopes be used to trace thyroid function?
Beta emitter with a moderate half-life so iodine uptake can be monitored over a period of time.
Why can radioisotopes be used for carbon dating?
Very long half-life (5730 years)
Why can radioisotopes be used for energy production?
Produces huge quantities of energy compared to the same mass of fossil fuels.
Why can radioisotopes be used for domestic smoke alarms?
Long half-life but alpha emitter so safe for use in homes.