Iron Has 26 Protons in Its Nucleus, and Gold Has

question 4

Multiple Choice

Iron has 26 protons in its nucleus, and gold has 79 protons. Where did all the gold on the Earth come from?

• A) nucleosynthesis on the surfaces of neutron stars
• B) nucleosynthesis that took place in supernova explosions
• C) nucleosynthesis in the cores of low-mass stars
• D) nucleosynthesis in the cores of massive stars
• E) nucleosynthesis in red giant and horizontal-branch stars

---

Definitions:

Addiction

A compulsive need for and use of a habit-forming substance or activity deemed harmful.

Dual Diagnosis

Refers to the co-occurrence of substance abuse problems and mental health disorders in an individual.

Anxiety Disorder

A mental health condition characterized by significant and persistent worry, anxiety, or fear, which can interfere with daily activities.

Personality Disorder

A type of mental disorder characterized by enduring maladaptive patterns of behavior, cognition, and inner experience, exhibited across many contexts.