When Two Protons and Two Neutrons Combine to Form ⁴He

question 239

Multiple Choice

When two protons and two neutrons combine to form ⁴He, the helium nucleus is less massive than the sum of the four original particles used to construct it. What is the significance of this result?

• A) The lost mass is transformed into energy.
• B) The mass is lost through friction.
• C) The lost mass can be accounted for by the masses of the particles emitted as radioactive decay during the interaction.
• D) The mass disappears without a trace.

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