The Mass Number Represents the Number of

question 83

Multiple Choice

The mass number represents the number of

• A) protons in an atom.
• B) electrons in an ion.
• C) neutrons in an atom.
• D) protons and neutrons in an atom.
• E) neutrons and electrons in an atom.

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Definitions:

Stability

The state of being resistant to change and maintaining the same conditions over time.

Serotonin

A neurotransmitter involved in many functions, including mood regulation, appetite, and sleep, often associated with feelings of well-being and happiness.

Monoamine Oxidase

An enzyme that breaks down monoamines, including neurotransmitters like dopamine and serotonin, impacting mood and behavior.

Neurotransmitters

Chemicals in the brain that transmit signals from one neuron to another, playing key roles in shaping mood and behavior.