An atom has mass number 232 and atomic number 90. How many \[\alpha \]-particles should it emit after emission of two \[\beta \]-particles, so that the new element's atom has mass number 212 and atomic number 82

An atom has mass number 232 and atomic number 90. How many \[\alpha \]

1.	An atom has mass number 232 and atomic number 90. How many \[\alpha \]-particles should it emit after emission of two \[\beta \]-particles, so that the new element's atom has mass number 212 and atomic number 82
A.	4
B.	5
C.	6
D.	3
Answer» C. 6

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An atom has mass number 232 and atomic number 90. How many \[\alpha \]-particles should it emit after emission of two \[\beta \]-particles, so that the new element's atom has mass number 212 and atomic number 82

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