After 32 Hours, of the Initial Amount of a Particular

question 35

Multiple Choice

After 3.2 hours, of the initial amount of a particular radioactive nuclide remains unchanged.What is the half-life of the nuclide?

• A)32 min
• B)45 min
• C)60 min
• D)74 min
• E)20 min

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Definitions:

Agricultural Herbicides

Chemical substances used to control or eliminate unwanted vegetation (weeds) in farming, to improve crop yields.

Physical Reactions

Changes in the state or properties of matter that do not involve a change in its chemical composition, such as melting, freezing, and evaporating.

Chemical Reactions

Processes by which substances interact to form new substances with different chemical compositions and properties.

Energy

The capacity to do work, existing in multiple forms such as kinetic, potential, thermal, electrical, chemical, nuclear, and more, crucial in all aspects of life and technology.