Unit 6 Test: Electrons and Light

Front

What is an Emission Spectrum?

Back

An Emission Spectrum is a spectrum of the electromagnetic radiation emitted by a source, showing bright lines at specific wavelengths corresponding to the energy levels of electrons in atoms.

Front

What is the formula to calculate the wavelength of light?

Back

The wavelength (λ) can be calculated using the formula: λ = c/f, where c is the speed of light (3.00 x 10^8 m/s) and f is the frequency.

Front

How many d orbitals are present in a d sublevel?

Back

There are 5 d orbitals in a d sublevel.

Front

What is the electron configuration for Zinc?

Back

The electron configuration for Zinc is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

What is the energy of a quantum of light with a frequency of 7.39x10^14 Hz?

Back

The energy (E) can be calculated using the formula E = hv, where h is Planck's constant (6.626 x 10^-34 J·s). For 7.39x10^14 Hz, E = 4.88 x 10^-19 J.

Front

What is a Continuous Spectrum?

Back

A Continuous Spectrum is a spectrum that shows all the colors of light without any gaps, produced by a solid, liquid, or densely packed gas.

Front

What is an Absorption Spectrum?

Back

An Absorption Spectrum is a spectrum that shows dark lines or bands superimposed on a continuous spectrum, indicating the wavelengths of light absorbed by a substance.

Front

What is the relationship between frequency and wavelength?

Back

Frequency (f) and wavelength (λ) are inversely related; as frequency increases, wavelength decreases, and vice versa, described by the equation c = fλ.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 3.00 x 10^8 meters per second.

Front

What is the significance of the quantum number 'n'?

Back

The quantum number 'n' indicates the principal energy level of an electron in an atom, determining its distance from the nucleus.