Electromagnetic Radiation & Atomic Spectra Quiz

Electromagnetic radiation can be described in terms of waves and characterized in terms of:

• Amplitude and phase

• Wavelength and frequency

• Speed and direction

• Intensity and polarization

The relationship between the speed of light (c), frequency (f), and wavelength (λ) is given by:

• c = f + λ

• c = f / λ

• c = f * λ

• c = λ / f

The different types of radiation arranged in order of wavelength is known as the:

• Electromagnetic spectrum

• Visible spectrum

• Infrared spectrum

• Ultraviolet spectrum

Wavelengths of visible light are normally expressed in:

• Meters (m)

• Centimeters (cm)

• Nanometers (nm)

• Millimeters (mm)

Electromagnetic radiation is said to have a dual nature because it can be described as:

• A wave and a particle

• A wave and a sound

• A particle and a gas

• A solid and a liquid

When electromagnetic radiation is absorbed or emitted by matter, it behaves like a stream of particles known as:

• Electrons

• Neutrons

• Protons

• Photons

A photon carries quantized energy proportional to the:

• Wavelength of radiation

• Frequency of radiation

• Speed of radiation

• Amplitude of radiation

The energy associated with a single photon is given by:

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Energy is often measured in units of:

• Joules (J)

• Kilojoules per mole (kJ mol⁻¹)

• Calories (cal)

• Electronvolts (eV)

When energy is transferred to atoms, electrons within the atoms may be promoted to:

• Lower energy levels

• Higher energy levels

• Ground state

• Neutral state