Chemistry

Problem

Calculate mass no., atomic no. and group in the periodic table for RaC in the following change.

{}_{88}\text{Ra}^{226} \xrightarrow{-\alpha} \text{Rn} \xrightarrow{-\alpha} \text{RaA} \xrightarrow{-\beta} \text{RaB} \xrightarrow{-\alpha} \text{RaC}