An element A decays into an element C by a two-step process: A→B+He42 and B→C+2e0−1.Then
A and C are isotopes
A and C are isobars
B and C are isotopes
A and B are isobars
A
B and C are isotopes
B
A and C are isotopes
C
A and C are isobars
D
A and B are isobars
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Solution
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Conservation of mass no. and charge holds true A→B ZB=ZA−2 MB=MA−4 B→C+2e ZC=ZB+2=ZA MC=MB=MA−4 Different mass, but same atomic No. Therefore, A and C are isotopes.
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