The Half-Life of ¹³¹I Is 8 $\mu$ CiHow Many Curies (In $\mu$

question 54

Multiple Choice

The half-life of ¹³¹I is 8.04 days.Three days after it was prepared,its activity was 0.50 $\mu$ Ci.How many curies (in $\mu$ Ci) were initially prepared?

• A).60
• B).70
• C).65
• D).55
• E).39

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Definitions:

Hypothalamus

A region of the brain responsible for releasing hormones that regulate body temperature, hunger, moods, and the release of hormones from many glands, especially the pituitary gland.

Thalamus

A brain structure that acts as a relay station, processing and transmitting sensory information to the cerebral cortex.

Base of Skull

The bottom part of the skull, upon which the brain rests, consisting of several bones that form the cranial base and provide structural support.

Localization of Function

The concept that specific parts of the brain are responsible for specific psychological or physiological functions.