The Amount of a Radioactive Isotope That Remains After Two

question 48

Multiple Choice

The amount of a radioactive isotope that remains after two half-lives have passed is

• A)98%.
• B)75%.
• C)50%.
• D)25%.

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Definitions:

Eye Medication

Pharmaceutical preparations specifically intended for application to the eyes, used to treat or prevent eye diseases and conditions.

Ear Plugs

Small devices inserted into the ear canal to protect the ears from loud noises, water, foreign bodies, or excessive wind.

Sensory Responses

The physiological reactions of sensory organs or nerves to external stimuli.

Blood Sugar

The concentration of glucose present in the blood, crucial for energy supply to cells and maintaining metabolic homeostasis.