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Card 6
Front
Which type of radiation can be stopped using a sheet of paper?
Back
Card 7
Front
Why do the unstable nuclei of radioactive substances emit radiation?
Back
Card 8
Front
What term is used to describe the emission of radiation from an atom?
Back
Card 9
Front
Why do we say that the emission of radiation is a random event?
Back
Card 10
Front
Where can background radiation come from?
Back
Card 11
Front
What famous discovery did Ernest Rutherford make in 1913?
Back
Card 12
Front
What experiments did he use to prove his discovery?
Back
Card 13
Front
How did Rutherford deduce that the nuclei of atoms are positively charged?
Back
Card 14
Front
How did Rutherford deduce that the atomic nucleus is much smaller than the atom?
Back
Card 15
Front
Give three reasons why Rutherford’s nuclear model was quickly accepted.
Back
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