The Half-Life of Carbon-14 Is 5730 Years

question 26

Multiple Choice

The half-life of carbon-14 is 5730 years.If a sample initially contains 2.67 mg carbon-14,what mass of carbon-14 remains in the sample after 2.40 × 10⁴ years?

• A) 0.0 mg
• B) 0.17 mg
• C) 0.92 mg
• D) 0.15 mg
• E) 0.64 mg

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Definitions:

Psychics

Individuals who claim to have abilities beyond natural or scientific understanding, often including the ability to predict future events or communicate with the deceased.

Telepathy

The purported transmission of information from one person to another without using any of our known sensory channels or physical interaction.

ESP

Short for extrasensory perception, the supposed ability to gain information without using the known five senses.

External Distractions

Outside factors that can divert individuals' attention away from the task at hand.