What Happens When the Electron in a Hydrogen Atom Flips

question 152

Multiple Choice

What happens when the electron in a hydrogen atom flips its direction of spin from parallel to antiparallel to that of the proton?

• A) Nothing. This event is a forbidden transition that never occurs.
• B) The atom emits a photon of 656.3-nm wavelength (Hα) in the red region of the spectrum.
• C) The atom emits a photon of 21-cm wavelength in the radio region of the spectrum.
• D) The atom emits a photon of 121.5-nm wavelength (Lα) in the UV region of the spectrum.

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Definitions:

Hans Eysenck

A psychologist known for his work on the theory of personality and intelligence, emphasizing genetic and environmental factors.

Egocentric

A perspective focused solely on one's own point of view and interests, often neglecting or struggling to understand others' viewpoints.

Humanist Term

A concept or term associated with humanism, emphasizing human values and concerns.

Self-actualizing

The realization or fulfillment of one's talents and potentialities, especially considered as a drive or need present in everyone.