nuclear chemistry Flashcards

1
Q

what does radioactive decay involve?

A

changes in nuclei of atoms

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2
Q

How can unstable nuclei become more stable?

A

Giving out alpha, beta or gamma radiation

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3
Q

What is the range of alpha particles

A

a few centimetres of air

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4
Q

What will alpha particles attract to?

A

A negatively charged plate

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5
Q

how far can beta particles travel?

A

Over a meter in air but can be stopped by a sheet of aluminium

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6
Q

beta particles will be attached towards..

A

A positively charged plate

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7
Q

what are gama rays

A

electromagnetic waves emitted from within the nucleus of an atom. They have no mass or charge

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8
Q

how far can gama rays travel?

A

a great distance in air but can be stopped by concrete or lead

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9
Q

Can gama rays be deflected by an electric field?

A

No

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10
Q

What can radioisotope iodine be used for in medicine?

A

Tracer for thyroid function

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11
Q

What can radioisotope phosphorus be used for?

A

Treatment of skin cancer

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