What Is the Half-Life of a Radioactive Sample If 0

question 4

Multiple Choice

What is the half-life of a radioactive sample if 0.892 g would take 3.73 days to decay to 0.114 g?

• A) 0.331 hours
• B) 2.96 hours
• C) 30.1 hours

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Definitions:

Delta Waves

Low frequency brain waves that indicate deep sleep or meditation.

Alpha Waves

Brainwave patterns associated with a state of wakeful relaxation.

Sleep Spindles

Bursts of oscillatory brain activity visible on an EEG that occur during stage 2 of non-REM sleep, often associated with learning, memory, and the brain's ability to reorganize itself.

Sleep Patterns

The habitual resting and waking rhythm that determines when one sleeps and the quality and duration of sleep.