Question

Converting uranium to thorium by decreasing the number of protons from 92 to 90 and decreasing the number of neutrons from 146 to 144 is an example of what type of decay?

Answer 1

How number of protons and neutrons change in decay?
Also, daughter nucleus is lighter containing less
Protons and neutrons. What kind of nucleus is removed?

Answer 2

\[^{238}_{92}{\large\text U}_{146}\quad\Longrightarrow\quad^{234}_{90}{\large\text{Th}}_{144}\quad+\quad^{238-234}_{92-90}{\large\,\text ?\,}_{146-144}\]

Answer 3

Alpha decay?