HW 3D - Radio Active Isotopes
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Transcript of HW 3D - Radio Active Isotopes
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8/10/2019 HW 3D - Radio Active Isotopes
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HW 3D - Radio Active Isotopes
1. How does an unstable nucleus release energy?
2. What are the three main types of nuclear
radiation?
_______________________________________
_______________________________________
_______________________________________
3. What part of the atom changes during radioactive
decay?
4. How is the atomic numberand atomic mass
numberof a nucleus changed by:
a. alpha decay
b. beta decay
c. gamma decay
5. Which of the three kinds of radiation discussed in
class is the most penetrating?
Hour _____ Name _________________________
Transmutation Reactions
The conversion of an atom of one element to an
atom of another element is called transmutation.
There are at least two ways that transmutation
occurs, by radioactive decayand whenparticles
bombard the nucleus of an atom.
6. Complete these nuclear equations by writing the
symbols of the missing particles resulting from
nuclear decay.
94
242Pu "
2
4He + _______
What type of decay is represented above? Alpha | Beta
12
28Mg "
-1
0e + _______
What type of decay is represented above? Alpha | Beta
_______ " 2
4He +
100
257Fm
What type of decay is represented above? Alpha | Beta
_______ " -1
0e +
83
211Bi
What type of decay is represented above? Alpha | Beta
7. Cesium-137,55
137Csis one of the radioactive
wastes from a nuclear power plant or an atomic
bomb explosion. It emits beta and gamma
radiation. Write the nuclear equation for the
decay of cesium-137.
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8/10/2019 HW 3D - Radio Active Isotopes
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