Q: - An isotope has too many protons - The isotope is unstable - The isotope emits radiation - The isotope decays - The isotope loses some atomic particles - The isotope turns into a different element What might be the last step of the process?
A: The isotope is finished decaying and emitting radiation.

Q: - Skin is cut or damaged - Bacteria enters through the wound - The bacteria reproduces and spreads - Causes symptoms What might be the last step of the process?
A: The bacteria is either fought off or becomes a disease.

Q: - Build a satellite - Attach a rocket - Add rocket fuel - Launch rocket What might be the last step of the process?
A: Satellite goes into orbit.

Q: - Get some seeds - Pick a spot to plant them - Dig a hole in the dirt - Put the seed in the hole - Pour some water on the seed and hole - Cover up the hole - Press down on it What might be the last step of the process?
A:
Spray some plant food on it.