When a Positron Is Emitted from the Nucleus of an Atom

question 79

Multiple Choice

When a positron is emitted from the nucleus of an atom, the nuclear mass

• A)increases by two units.
• B)decreases by one unit.
• C)increases by one unit.
• D)decreases by two units.
• E)remains the same.

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Definitions:

Low Levels

Referring to a reduced quantity or intensity of a specific substance, factor, or activity often compared to a standard or expected range.

Biological Factor

A contributing component of living organisms, such as genetic, neurological, or physiological conditions, that affect their functions or behaviors.

Serotonin

A neurotransmitter in the brain that regulates mood, appetite, and sleep, playing a key role in mental health and wellbeing.

Diagnosable Mental Disorder

A mental disorder that can be identified and classified based on standard criteria in a diagnostic manual, indicating significant psychological distress or impairment.