Atomic Spectra Quiz

According to Bohr's model of the atom, what happens when an electron jumps from a lower energy orbit to a higher energy orbit?

• A. A photon is absorbed

• B. A photon is emitted

• C. The atom becomes ionized

• D. The electron splits into two

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What is emitted when an electron in an atom returns to its ground state from a higher energy orbital?

• A. Light

• B. Heat

• C. Sound

• D. Electricity

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Which option correctly describes the process that leads to the emission of radiation according to the Bohr model?

• A. Electrons jump from a lower orbit to a higher orbit and photon energy equals E2 - E1.

• B. Electrons jump from a higher orbit to a lower orbit and photon energy is greater than E2 - E1.

• C. Electrons jump from a higher orbit to a lower orbit and photon energy equals E2 - E1.

• D. Electrons jump from a lower orbit to a higher orbit and photon energy is less than E2 - E1.

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What can be analyzed by comparing the emission spectra of an unknown sample of gases with the emission spectra of known elements?

• A. The chemical composition of the sample

• B. The temperature of the sample

• C. The density of the sample

• D. The pressure within the sample

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Based on comparisons of these spectra, which two elements are found in the unknown sample?

• Elements 1 and 2

• Elements 1 and 3

• Elements 2 and 4

• Elements 2 and 3

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The element hydrogen has the fewest number of lines in its emission spectrum because it has -

• only one proton.

• the fewest number of electrons.

• the smallest nucleus.

• the lowest atomic mass.

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Photons are emitted as an electron returns to its ground state from an excited state. When this occurs, the wavelength of the photon is determined by the -

• number of electrons in the atom.

• difference in energy between the two states.

• number of electrons in the atom.

• distance the electron is from the nucleus.

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Which of the following does NOT describe an atomic spectrum?

• Light that contains patterns characteristic of the elements present in a gas.

• Something we can use to figure out what elements are present in the sun.

• A mixture of light of different wavelengths.

• A full rainbow, such as would be contained inside purely white light.

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What is the name of the equipment used to split the sun's light into its various colors to analyze it?

• A splitter

• A spectrometer

• A half-wave plate

• A gyroscope