The Half-Life of Cobalt-60 Is 5

question 14

Multiple Choice

The half-life of cobalt-60 is 5.3 years,while that of strontium-90 is about 29 years.Suppose you have samples of both isotopes,and that they initially contain equal numbers of atoms of these isotopes.How will the activities (number of decays per second) of the samples compare?

• A)The activity of the cobalt-60 sample will be greater.
• B)The activities cannot be compared without more information.
• C)The activities will be equal.
• D)The activity of the strontium-90 sample will be greater.

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Definitions:

Clutter and Spills

Environmental hazards that can lead to accidents, such as tripping or slipping, particularly in healthcare or living spaces.

Nonskid Slippers

Footwear designed with a grip-enhancing sole to prevent slips and falls, commonly used in healthcare settings for patient safety.

Fall Risk

The likelihood that an individual may experience a fall, often assessed in healthcare settings to prevent injuries.

Wrist Restraints

Devices used to securely limit the mobility of a patient's wrists, often in medical settings to prevent self-harm or interference with essential treatments.