Final answer:
The balanced equations for the nuclear reactions and the type of reaction in each are provided.
Step-by-step explanation:
To write the balanced equations for each nuclear reaction, we need to understand the types of reactions involved. In (a), the production of ¹70 (Radium) from ¹4N (Nitrogen) by a particle bombardment, an alpha particle (He) is emitted. The balanced equation is ¹4N + ²4He -> ¹70 + -1⁰e.
In (b), the production of ¹4C (Carbon) from ¹4N (Nitrogen) by neutron bombardment, a neutron (n) is absorbed. The balanced equation is ¹4N + 0¹n -> ¹4C + 1⁰e.
In (c), the production of 233Th (Thorium) from 232Th (Thorium) by neutron bombardment, a neutron (n) is absorbed. The balanced equation is 232Th + 0¹n -> 233Th.
In (d), the production of 239U (Uranium) from 238U (Uranium) by H (Hydrogen) bombardment, a proton (p) is absorbed. The balanced equation is 238U + ¹₁p -> 239U.