The Four Lines Observed in the Visible Emission Spectrum of Hydrogen

question 63

Multiple Choice

The four lines observed in the visible emission spectrum of hydrogen tell us that

• A)The hydrogen molecules they came from have the formula H₄.
• B)We could observe more lines if we had a stronger prism.
• C)There are four electrons in an excited hydrogen atom.
• D)Only certain energies are allowed for the electron in a hydrogen atom.

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Definitions:

Purity

The condition or quality of being free from contamination, pollutants, or immoral behavior; often associated with cleanliness or moral wholesomeness.

Wavelength

A measure of the distance between consecutive points of a wave, typically used in the context of electromagnetic waves.

Night

The period of darkness in each twenty-four hours; the time from sunset to sunrise.

Receptors

Specialized cells or proteins that detect and respond to external substances, such as hormones, neurotransmitters, or sensory stimuli.