Rutherford's Experiment, in Which He Fired Alpha Particles of 7

question 82

Multiple Choice

Rutherford's experiment, in which he fired alpha particles of 7.7 MeV kinetic energy at a thin gold foil, showed that nuclei were very much smaller than the size of an atom because

• A) some alpha particles passed through the foil undeflected.
• B) some alpha particles were deflected backwards.
• C) some alpha particles were captured by the gold nuclei.
• D) the alpha particles could not get closer than 10−¹⁰ m to the gold nuclei.
• E) the alpha particles split into deuterium nuclei when they encountered the gold nuclei.

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Definitions:

I-Self

Part of the self-concept that involves consciousness and self-awareness, distinguishing oneself from the external environment.

Objective Self-Awareness

The ability to observe oneself from an external viewpoint, leading to a greater understanding of one’s actions and their impact.

Sense of Self

The individual's awareness of their own identity and personal characteristics, including beliefs, values, and physical self.

Externalizing Problems

Problem behavior that involves engaging in inappropriate conduct, especially aggressive acts.