Select each of the following that is a characteristic of alpha decay. 1.The chemical element of...
Select each of the following that is a characteristic of alpha decay.
1.The chemical element of the nucleus that decays remains unchanged.
2.The mass number of the nucleus that decays decreases by 4.
3.The atomic number of the nucleus that decays decreases.
4.The radiation that is produced carries a positive charge.
5.The mass number of the nucleus that decays remains unchanged.
6.The atomic number of the nucleus that decays increases.
7.The radiation that is produced carries a negative charge.
8.The mass number of the nucleus that decays decreases by 2.
Homework Answers
2.The mass number of the nucleus that decays decreases by 4.
3.The atomic number of the nucleus that decays decreases.
4.The radiation that is produced carries a positive charge.
Because, an alfa particle has two protons and two neutrons.
so, when a nucleus decays alfa-particle its mass number decreases by 4 and atomic number decreases by 2.
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