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# The mass number, atomic number and group in the periodic table for RaC in the following change will be:     $_{88}R{{a}^{226}}\xrightarrow{-\alpha }Rn\xrightarrow{-\alpha }RaA\xrightarrow{-\beta }RaB\xrightarrow{-\alpha }RaC$(A) Atomic number =83; mass number=214; group is V(B) Atomic number =81; mass number=211; group is V(C) Atomic number =82; mass number=212; group is IV(D) Atomic number =80; mass number=213; group is IV

Last updated date: 09th Aug 2024
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Hint: Radioactivity is the process by which an unstable atomic nucleus loses energy by radiation. The material with unstable nuclei is considered to be radioactive. The information of the group of the element is seen from the electronic configuration of the element.

Alpha decay or $\alpha$-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into a different atomic nucleus, with a mass number that is reduced by four and an atomic number that is reduced by two.
$_{88}R{{a}^{226}}{{\xrightarrow{-\alpha }}_{86}}R{{n}^{222}}{{\xrightarrow{-\alpha }}_{84}}Ra{{A}^{218}}{{\xrightarrow{-\beta }}_{85}}Ra{{B}^{218}}{{\xrightarrow{-\alpha }}_{83}}Ra{{C}^{214}}$