21. Nuclear Chemistry

When a radioactive isotope releases an alpha particle, the atomic number of the atom is

Identify the nuclide produced when neptunium-237 decays by alpha emission: ²³⁷₉₃Np → ⁴₂He + ?

Enter the nuclear equation for the alpha decay of polonium-216 (²¹⁶₈₄Po).

Consider the isotope Th-228. Write the nuclear equation for the alpha decay of the mentioned isotope.

²³⁴₉₂U undergoes alpha decay. What is the atomic number of the resulting element?