Question 203: Atoms & Nuclei

Question

Consider the following radioactive decay process
$$_{84}^{218}A\buildrel \alpha  \over
 \longrightarrow {A_1}\buildrel {{\beta ^ - }} \over
 \longrightarrow {A_2}\buildrel \gamma  \over
 \longrightarrow {A_3}\buildrel \alpha  \over
 \longrightarrow {A_4}\buildrel {{\beta ^ + }} \over
 \longrightarrow {A_5}\buildrel \gamma  \over
 \longrightarrow {A_6}$$
The mass number and the atomic number of A$$_6$$ are given by :

Accepted Answer

${ }_{84}^{218} A \stackrel{\alpha}{\longrightarrow}{ }_{82}^{214} A_{4} \stackrel{\beta^{-}}{\longrightarrow}{ }_{83}^{214} A_{2} \stackrel{\gamma}{\longrightarrow}{ }_{83}^{214} A_{3} \stackrel{\alpha}{\longrightarrow}{ }_{81}^{210} A_{4} \stackrel{\beta^{+}}{\longrightarrow}{ }_{80}^{210} A_{5} \stackrel{\gamma}{\longrightarrow}{ }_{80}^{210} A_{6}$
Mass number $=210$
Atomic number $=80$

Answer

210 and 84

Answer

210 and 80

Answer

211 and 80

Answer

210 and 82

Atoms & Nuclei

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