Atomic Emission Spectra and the Bohr Model Quiz

What is the atomic emission spectrum?

• The pattern formed when light emitted by an element is separated into the different wavelengths it contains

• The specific frequencies of light emitted by an element

• The fixed energies an electron can have in an atom

• The tool that uses a prism to separate light into its individual colors

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What does each color of light in the atomic emission spectrum represent?

• Different wavelengths of light

• Different energy levels of electrons

• Different elements

• Different sources of light

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What is the purpose of a spectroscope?

• To separate light into its individual colors

• To emit light when an element absorbs energy

• To identify unknown samples using atomic emission spectra

• To explain the Bohr model of the atom

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What is unique about the atomic emission spectrum of each element?

• It corresponds to specific wavelengths and acts like a fingerprint

• It can be used to identify unknown samples

• It gives information about the source of the element

• It is the same for atoms anywhere in the universe

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How do scientists use atomic emission spectra to study the elemental composition of stars?

• By analyzing the specific wavelengths of light emitted by the stars

• By comparing the atomic emission spectra of different elements

• By collecting samples of the stars and analyzing their spectra

• By studying the atomic emission spectra of hydrogen

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What is the Bohr model of the atom?

• A model that describes electrons as moving in circular orbits around the nucleus

• A model that explains the emission spectra of all elements

• A model that represents the energy levels of electrons in an atom

• A model that uses a spectroscope to separate light into its individual colors

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What are energy levels in atoms?

• Fixed energies that electrons can have in an atom

• The different wavelengths of light emitted by an element

• The specific frequencies of light in the atomic emission spectrum

• The distances between crests of waves in light

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What is a quantum of energy?

• The amount of energy required for an electron to move from one energy level to another

• The specific amount of energy absorbed or emitted by an electron

• The fixed energy levels in an atom

• The pattern formed when light is separated into its individual colors

Why is the energy of an electron said to be quantized?

• Because an electron can only exist in certain fixed energy levels

• Because the energy levels in an atom are not equally spaced

• Because electrons can absorb or give off any amount of energy

• Because the size of a quantum of energy can vary

What did Bohr's model of the atom predict?

• The specific frequencies of light in the atomic emission spectrum of hydrogen

• The specific wavelengths of light emitted by all elements

• The energy levels of electrons in an atom

• The pattern formed when light is separated into its individual colors

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