Which of the following characterizes nuclear reactions?
Answer

The loss of mass cannot be accounted for.

The chemical composition of the atoms remains the same.

The number of protons and neutrons in reacting atoms changes.

Energy is not conserved.

Question

Which of the following characterizes nuclear reactions?
Answer
		
The loss of mass cannot be accounted for.
		
The chemical composition of the atoms remains the same.
		
The number of protons and neutrons in reacting atoms changes.
		
Energy is not conserved.

anonymous · Answer

Using the equation E = mc^2, we can confirm two options. For the other two, consider what happens to an atom in a nuclear reaction.