When an Unstable Nucleus Decays by Emitting an Alpha Particle,the

question 42

Multiple Choice

When an unstable nucleus decays by emitting an alpha particle,the atomic number Z of the nucleus

• A)increases by 4.
• B)increases by 2.
• C)decreases by 2.
• D)decreases by 4.
• E)remains unchanged.

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Definitions:

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The act of withdrawing, cancelling, or annulling a legal right, license, or agreement formally and officially.

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