(a) 1. Which element is used in the lining of the special aprons worn by workers in nuclear power plants?
2. Why is this element preferred?
(b) \(^{24}_{11}\)Na emits a nuclear radiation which does not alter the mass number and is deflected by a magnetic field.
1. Name the type of nuclear radiation emitted by \(^{24}_{11}\)Na.
2. Write the equation for this radioactive decay.