41. An element P decays into element R by a multi step
process P Q + 2Het and Q R + 2e-. Then
(1) P and Rare isotopes A
27 P and Rare isobarst
(3) Q and R are isotopes
(4) P and Q are isobars
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Answer:
Since P and R is of same atomic number so correct answer is
(1) P and Rare isotopes
Explanation:
As we know by the given equations
now we know from above equation that first equation is alpha decay while the other equation is beta decay
so in first equation
element P is having
atomic number z and mass number A
element Q
atomic number z - 2 and mass number A - 4
in second equation it is beta decay
element R
atomic number z and mass number A - 4
So here we can say that P and R is of same atomic number so they are isotopes while Q and R is of same mass number so they are isobars
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Topic : isotopes
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