作业帮SAT2 which of the following radioactive processes when occur
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SAT2
which of the following radioactive processes when occurring separately ,must alter the atomic number of the radioactive nucleus?
1,alpha decay
2,beta decay
3,gamma decay
A,1
B,2
C,3
D,1,2
F,1,2,3
which of the following radioactive processes when occurring separately ,must alter the atomic number of the radioactive nucleus?
1,alpha decay
2,beta decay
3,gamma decay
A,1
B,2
C,3
D,1,2
F,1,2,3
D
alpha decay:the nucleus loses 2 protons and 2 neutrons,so the atomic number is changed (reduced by 2).
beta decay:the most common form is that the nucleus loses an electron,so the the atomic number increases by 1.
Gamma decay:a nucleus changes from a higher energy state to a lower energy state through the emission of electromagnetic radiation (photons).The number of protons (and neutrons) in the nucleus does not change in this process,so the parent and daughter atoms are the same chemical element.
alpha decay:the nucleus loses 2 protons and 2 neutrons,so the atomic number is changed (reduced by 2).
beta decay:the most common form is that the nucleus loses an electron,so the the atomic number increases by 1.
Gamma decay:a nucleus changes from a higher energy state to a lower energy state through the emission of electromagnetic radiation (photons).The number of protons (and neutrons) in the nucleus does not change in this process,so the parent and daughter atoms are the same chemical element.
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