The Half-Life of Is 24 Minutes

question 4

Multiple Choice

The half-life of is 24 minutes.A freshly prepared sample is allowed to sit for 2.0 hours.If the mass of the sample after this period of time is 1.0 mg,what was the original sample mass?

• A)0.031 mg
• B)1.3 mg
• C)5.0 mg
• D)32 mg
• E)3.2* 10² mg

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Definitions:

Cones

Cells in the eye's retina known as photoreceptors work optimally in well-lit conditions and allow for the recognition of different colors.

Color Receptors

Specialized cells in the retina of the eye responsible for detecting color through the absorption of light at varying wavelengths.

Wavelengths

The length separating consecutive peaks of a wave, particularly in sound or electromagnetic waves.

Dichromatic Vision

A form of color vision deficiency where a person can perceive only two of the three basic colors.