When a Nucleus Undergoes Radioactive Decay, the New Mass Number

question 143

Multiple Choice

When a nucleus undergoes radioactive decay, the new mass number is ________

• A)always less than the original mass number.
• B)always the same as the original mass number.
• C)always more than the original mass number.
• D)never less than the original mass number.
• E)never more than the original mass number.

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