An Electron in an Atom Initially Has an Energy 7

question 3

Multiple Choice

An electron in an atom initially has an energy 7.5 eV above the ground state energy. It drops to a state with an energy of 3.2 eV above the ground state energy and emits a photon in the process. The momentum of the photon is:

• A) 1.7 * 10^-27 kg .m/s
• B) 2.3 *10^-27 kg . m/s
• C) 4.0 * 10^-27 kg . m/s
• D) 5.7 * 10^-27 kg .m/s
• E) 8.0 * 10^-27 kg . m/s

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Definitions:

External Locus

A perspective where an individual believes that their life's outcomes are controlled by external forces or factors beyond their personal control.

Alarm Stage

The initial phase of the stress response, where the body recognizes a threat and prepares to face or flee from it.

Selye's General Adaptation Syndrome

A model describing the body's physiological response to stress through various stages: alarm reaction, stage of resistance, and stage of exhaustion, highlighting the body's attempt to adapt to stress.

Parasympathetic Nervous System

A division of the autonomic nervous system that conserves energy by slowing the heart rate and increasing intestinal and gland activity, facilitating a state of rest and digest.