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Radioactive disintegratin of .(88)Ra^(22...

Radioactive disintegratin of `._(88)Ra^(226)`
`Ra overset(-alpha)rarr Rn overset(-alpha)rarr RnA overset(-alpha)rarr RaB overset(-beta)rarr RaC`
Determine the mass number, atomic number, and group of periodic table for `RaC`.

Text Solution

Verified by Experts

Parent element is `._(88)Ra^(226)`
Atomic mass = 226
Atomic number = 88
Emission of an `alpha` shows a loss in mass number by 4 units and loss in atomic number by 2 unit.
Emission of a `beta`-shows a gain in atomic number by one unit, mass number remains same.
Atomic number of `RaC = 83`
Mass number of `RaC = 83`
Group of element `RaC` is `V` from configuration 2,8 ,18,32,18,5.
The Number of electrons in outer shell suggest for group `V`.
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