Answer:
Its a Nuclear reaction
Step-by-step explanation:
- A nuclear reaction is a type of reaction that involves the nucleus of an atom and does not affect the electrons like chemical reactions.
- The the reaction is known as a nuclear reaction;
²⁴⁴Pu+ ⁴He → ²⁴⁰U
- The above type of nuclear reaction is an alpha decay in which a radioisotope Pu-244 undergoes alpha decay to form U-240.
- An Alpha particle is equivalent to the nucleus of a helium atom (⁴₂He).
- Therefore, when a radioisotope undergoes alpha decay the mass number decreases by 4 and the atomic number decreases by 2.