The heaviest nuclear radiation is :

1. X radiation
2. α radiation
3. γ radiation
4. β radiation

To study the age of excavated materials of archeological significance, we study the rate of decay of an isotope of :

1. uranium
2. cobalt
3. carbon
4. chlorine

The correct representation of γ emission is :

1. $_{Z}^{A}\text{P} \longrightarrow \space _{Z-1}^{ \space \space \space \space \space A}\text{Q} + γ$
2. $_{Z}^{A}\text{P} \longrightarrow \space _{Z-2}^{A-4}\text{Q} + \space _{2}^{4}γ$
3. $_{Z}^{A}\text{P} \longrightarrow \space _{Z}^{A}\text{P} + γ$
4. $_{Z}^{A}\text{P} \longrightarrow \space _{Z-1}^{A}\text{P} + γ$

The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter nucleus is :

1. isotope of the parent
2. isobar of the parent
3. isotone of the parent
4. None of the above