When Radium (A = 88) Emits an Alpha Particle, the Resulting

question 46

Multiple Choice

When radium (A = 88) emits an alpha particle, the resulting nucleus has atomic number

• A) 88.
• B) 92.
• C) 86.
• D) 90.
• E) none of these

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Definitions:

Empirical Support

Evidence that is based on observation or experience rather than theory or pure logic.

Cognitive

Relating to cognition, involving the processes of thinking, understanding, learning, and remembering.

Activation-synthesis

A theory of dreaming that states dreams are created by the higher centers of the cortex to explain the activation by the brain stem of cortical cells during REM sleep periods.

Narcolepsy

A chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep, often linked to a deficiency in the brain's regulation of wakefulness.