The Half-Life of Technetium-99m Is 6 Hours

question 60

Multiple Choice

The half-life of technetium-99m is 6 hours. How many unstable atoms will remain after 12 hours?

• A) One sixth of the original amount.
• B) One fourth of the original amount.
• C) One third of the original amount.
• D) Half of the original amount.

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Definitions:

Rorschach Test

A psychological test in which subjects' perceptions of inkblots are recorded and then analyzed using psychological interpretation.

Demonstrated Validity

The extent to which evidence and theory support the interpretations of test scores for intended purposes.

Hermann Rorschach

A Swiss psychiatrist known for creating the Rorschach inkblot test, a projective psychological test measuring underlying thought disorder and personality structure.

Meaningless Inkblots

Images without inherent meaning used in psychological tests (e.g., Rorschach test) to explore individuals' perceptions and thought processes.