Alpha Particles Are Best Described as

question 47

Multiple Choice

Alpha particles are best described as

• A) neutral particles that weigh approximately one atomic mass unit.
• B) positive particles that are identical to the nucleus of an atom of ⁴He.
• C) electrons ejected at high speeds from a radioactive nucleus.
• D) high-speed particles similar in size to an electron, but oppositely charged.
• E) a form of electromagnetic radiation.

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Definitions:

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