In the process of alpha decay, an alpha particle is separated from the atomic nucleus, which is the nucleus of the helium 4 2He atom.
Nuclear reaction equations:
23892U = 23490Th + 42He;
23490Th = 23088Ra + 42He;
Answer: with a two-fold alpha decay of the uranium nucleus, radium will be formed.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.