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SCIENCE YEAR 9 EXAM STUDY > NUCELAR REACTIONS > Flashcards

NUCELAR REACTIONS Flashcards

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1
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2
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Nuclear reaction

A

a process that causes a nucleus to change, including alpha and beta decay

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3
Q

Isotope

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have the same atomic number and belong to the same element but have different mass numbers.

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4
Q

Radioisotope

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an isotope with a nucleus that may undergo a nuclear reaction

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5
Q

Radiotherapy

A

cancerous cells exposed to high levels of radiation to stop them from multiplying. Also damages healthy cells & leads to side effects.

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6
Q

Nuclear imaging

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Radioisotopes (atoms that contain unstable combination of neutrons and protons) used to obtain detailed images of organs inside the body (i.e. PET scan)

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7
Q

HALF LIFE

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The half-life of a radioisotope is the time it takes for half the nuclei to decay.

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8
Q

CARBON DATING

A

a method for judging the age of artefacts or fossils by analysing the amount of carbon-14 in the fossil.

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SCIENCE YEAR 9 EXAM STUDY (7 decks)

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