Chemistry Chapter 4 Practice Test

The speed of an electromagnetic wave is equal to the product of its wavelength and its

• mass

• velocity

• color

• frequency

Light can be described as a

• wave

• wave and a particle

• particle

• none of the above

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The electromagnetic spectrum includes _____________form(s) of electromagnetic radiation.

• all

• some

• one

• three

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The minimum quantity of energy that can be lost or gained by an atom is called a

• photon

• quantum

• wavelength

• joule

A particle of electromagnetic radiation having zero mass and carrying a

quantum of energy is called a(n)

• quantum

• electron

• wavelength

• photon

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Hydrogen’s line-emission spectrum in the

visible range are found in the _______________ series.

• Lyman

• Balmer

• Paschen

• Quantum

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This physicist proposed a model of the hydrogen atom that linked the atom’s electron with

photon emission. According to the model, the electron can circle the nucleus only in

allowed paths or orbits.

• Einstein

• Planck

• Bohr

• Rutherford

In 1905 this scientist expanded on Planck’s theory by introducing a radical idea that

electromagnetic radiation has a dual wave-particle nature. Light can exhibit wave-like

particles but can also be thought of as a stream of particles.

• Bohr

• Planck

• Einstein

• Rutherford

How are frequency and wavelength mathematically related to each other?

The distance between corresponding points on adjacent

waves is called

• Frequency

• Period

• Wavelength

• Photon