A Source of Alpha Particles Bombards a Target of Gold

question 40

Multiple Choice

A source of alpha particles bombards a target of gold. A small fraction of alpha particles return in a direction opposite to that of the ingoing source particles. Which of the following statements accurately describes the cause of this phenomenon?

• A)There is electrostatic repulsion between the alpha particles meeting a gold nucleus head-on.
• B)The alpha particles are randomly scattered, and some return in the opposite direction.
• C)The alpha particles feel the combined electrostatic forces of several gold nuclei acting in the opposite direction.
• D)This never happens because the gold atoms are electrically neutral.

---

Definitions:

Depression Requires Treatment

The necessity of seeking professional intervention to address and manage the symptoms of depression effectively.

Electroconvulsive Therapy (ECT)

A psychiatric treatment in which seizures are electrically induced in patients to provide relief from mental disorders.

Depression

A condition of mental health where an individual experiences a lasting state of melancholy or apathy towards activities, greatly affecting daily life.

Social Skills Training

A therapy approach that helps people learn or improve social skills and assertiveness through role playing and rehearsing of desirable behaviors.