A Radioisotope Decays, Producing an Alpha Particle and Th-234

question 57

Multiple Choice

A radioisotope decays, producing an alpha particle and Th-234. The original radioisotope must have been an atom of ________.

• A) Pa
• B) Bi
• C) U
• D) Ra
• E) Rb

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Definitions:

Changing Table

A piece of furniture designed for comfortably changing a baby's diaper and clothes.

Heimlich Maneuver

An emergency procedure for dislodging an obstruction from a person's windpipe, involving a sudden, forceful attempt to expel air from the lungs.

Transitional Expression

Phrases or words used to connect ideas, sentences, or paragraphs, helping to guide the reader smoothly through the text.

Transitional Expression

Words or phrases that provide a connection between ideas, sentences, and paragraphs, helping to make communication clear and smooth.