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Nuclear Stability and Nuclear Decay Reactions
Bozman Nuclear Reactions
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Nuclear reactions change the composition of an atoms nucleus
Nuclear reactions change the composition of an atoms nucleus All three kinds of radiation – alpha, beta and gamma radiation are produced by nuclear reactions
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These changes include emitting or giving off :
When the nucleus of an atom is unstable, changes are likely to take place inside it. These changes include emitting or giving off : Name Identity Charge Penetrating Ability alpha particle helium nuclei 2+ low, stopped by paper beta particle electron 1- medium, stopped by heavy clothing gamma rays high energy non-particle radiation none high, stopped by lead
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Alpha Decay of 18579Au → Alpha Decay of 23892U → Beta Decay of 2411Na → Beta Decay of 22387Fr → For the given reactions what is the missing particle? (Remember conservation of mass.) 22688Ra --> Rn + ____________ 4219K --> ________________ e 31H --> e + _________________
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Fusion Reaction – nuclei with small masses combine to form a nucleus with a larger mass
11H + 11H --> 21H e v 11H + 21H --> 32He + γ 32He He --> 42He + 2(11H) Secrets of the SUN The Universe 44:07
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This Is Mind Blowing!
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Fission Reaction – nucleus divides into two or more fragments, releasing neutrons and energy.
23592U + 10n --> Kr Ba (10n)
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