There are 5 alpha and 5 beta particle emit emission of thorium-232 nucleus into astatine-212.
A beta ray would be released from such an atomic nucleus during a radioactive decay process known as beta decay. The proton in the nucleus changes from a proton to a neutron throughout beta decay, and vice versa.
It is given that, The atomic mass of Th = 232
Atomic mass of astatine = 212
Atomic number of Th = 90.
Atomic number of astatine = 85
Number of alpha particle = difference between atomic mass / 4
Number of alpha particle = 232-212 /4
Number of alpha particle = 20/4
Number of alpha particle = 5
Thus, the number of alpha particle will be 5.
Number of beta particle = difference between atomic number
Number of beta particle = 90-85
Number of beta particle = 5
Thus, the number of beta particle will be 5
Therefore, the number of alpha and beta particle will be 5 and 5.
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