A) The nucleus is unstable.
In this case, the uranium-238 nucleus is unstable and undergoes radioactive decay to become a more stable thorium-234 nucleus. This process helps to explain why uranium-238 decays into thorium-234.
Uranium-238 decays into thorium-234.
How do scientists explain why this happens?
A) The nucleus is unstable.
B) The atom is unstable.
C) It is bombarded by alpha particles.
D) It is bombarded by neutrons.
1 answer