Consider the following radioactive decay process: The mass number and the atomic number of are given by: [2023]

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Solution

Q.
Consider the following radioactive decay process:

${}_{84}^{218}A \overset{α}{\to} A_{1} \overset{β^{-}}{\to} A_{2} \overset{γ}{\to} A_{3} \overset{α}{\to} A_{4} \overset{β^{+}}{\to} A_{5} \overset{γ}{\to} A_{6}$

The mass number and the atomic number of $A_{6}$ are given by: [2023]

1 211 and 80

2 210 and 80

3 210 and 82

4 210 and 84

Ans.
(2)

${}_{84}^{218}A \overset{α}{\to} {}_{82}^{214}A_{1} \overset{β^{-}}{\to} {}_{83}^{214}A_{2} \overset{γ}{\to} {}_{83}^{214}A_{3}$

${}_{83}^{214}A_{3} \overset{α}{\to} {}_{81}^{214}A_{4} \overset{β^{+}}{\to} {}_{80}^{210}A_{5} \overset{γ}{\to} {}_{80}^{210}A_{6}$

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