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.(90)Th^(232) emits 6alpha and 4 beta pa...

`._(90)Th^(232)` emits `6alpha` and `4 beta` particles and gets converted into a lead. The mass number and atomic number of lead is

A

208, 82

B

82, 208

C

210, 82

D

210, 84

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The correct Answer is:
A
`._(0)Th^(232) overset(6 alpha)(rarr) ._(78)X^(208) overset(4 beta)(rarr) ._(82)Pb^(208)`
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