So-Called "Magic Numbers" of Particles Are Thought to Convey Extra

question 72

Multiple Choice

So-called "magic numbers" of particles are thought to convey extra stability to certain nuclei. These magic numbers refer to which of the following particles?

• A) protons only
• B) electrons only
• C) positrons only
• D) neutrons only
• E) protons and neutrons

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Definitions:

Brain Chemicals

Chemicals in the brain that transmit messages between neurons, including neurotransmitters like serotonin and dopamine.

Neurotransmitter

Chemical substances released from nerve endings that transmit signals across a synapse from one neuron to another neuron, muscle cell, or gland cell.

Mood Disorders

A category of mental disorders involving persistent disturbances in mood, encompassing conditions like depression and bipolar disorder.

Endorphins

The body’s own natural painkillers, which block pain and produce a feeling of well-being.