Radioactive Decay
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What is all matter made up of?
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Dust
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Sun rays
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Atoms
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Metal
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Isotopes and radioactive decay
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- 2.
This is the amount of time it takes for half of a radioactive material to decay.
- 3.
What is emitted during alpha decay?
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An electron from the electron cloud
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Two protons and two neutrons from the nucleus
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An electron from the nucleus
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Two protons and two neutrons from the electron cloud
Correct Answer
A. Two protons and two neutrons from the nucleus -
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An isotope has the same number of _________, but different numbers of _____________.
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Electrons, protons
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Protons, electrons
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Protons, neutrons
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Neutrons, protons
Correct Answer
A. Protons, neutrons -
- 5.
A radioactive isotope has a half-life of 2 years. How much of a 400g sample remains after 4 years?
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400g
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300g
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200g
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100g
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0g
Correct Answer
A. 100g -
- 6.
What is emitted during beta decay?
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An electron from the electron cloud
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Two protons and two neutrons from the nucleus
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An electron from the nucleus
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Two protons and two neutrons from the electron cloud
Correct Answer
A. An electron from the nucleus -
- 7.
In beta decay a ________ splits to make a ________ and a _________ which is emitted from the nucleus.
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Proton, neutron, electron
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Electron, proton, neutron
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Neutron, proton, electron
Correct Answer
A. Neutron, proton, electron -
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Current Version
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Mar 18, 2022Quiz Edited by
ProProfs Editorial Team -
Oct 24, 2008Quiz Created by
Dbynagle
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