Beta decay occurs as either + decay or decay. An isotope of calcium Ca
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Beta decay occurs as either β+ decay or β− decay. An isotope of calcium Ca decays by β+ emission into the isotope 4621 Sc, and an isotope of magnesium 2312 Mg decays by β emission into the isotope 2311 Na.
a. Copy and complete the following decay equations for the calcium and magnesium isotopes.
i. Decay of calcium: 4620 Ca → Sc + β+ + ...
ii. Decay of magnesium: 2312 Mg → Na + β+ + ...
b. State what happens in each type of β decay in terms of the quark model of nucleons.
i. β− decay
ii. β+ decay.
c. Name the force responsible for β decay.
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Related Book For
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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