Question

Choose the most appropriate answer. In the nucleus reaction presented the other particles might be

• A. An alpha particle, which consists of two protons and two neutrions
• B. Two protons
• C. One protons and one neutrons
• D. Two neutrons

Answer 1

Answer: (B)

Two protons

$\begin{array}{c}\text{Given-}\ast \text{Radioactive decay -}\\ {}_{92}{U}^{236}{⟶}_{52}X{e}^{140}{+}_{38}S{r}^{94}+\text{others}\end{array}$

$\begin{array}{c}\text{Since, from the above reaction-}\\ \text{After adding,we can conclude that we have a loss of}2\text{units}\\ \text{in atomic mass and a loss of 2 units in}\\ \text{atomic number.}\\ \text{Hence, We can say that}2\text{protons were the other}\\ \text{particles,}\\ \text{Hence, option (B) is correct.}\end{array}$