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Questions  

A radioactive nucleus undergoes a series of decay according to the scheme 
AαA1βA2αA3γA4 
If the mass number and atomic number of A are 180 and 72 respectively, what are these numbers for A4?

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By Expert Faculty of Sri Chaitanya
a
172,69
b
69,172
c
180,69
d
69,180

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detailed solution

Correct option is A

Mass number of A4=172 Atomic number of A4=69for A1 z=70 ,A=176 FOR A2 Z=71, A=176 FOR A3  Z=69 , A=172  A4 is also same
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ctaimg

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