Which Of The Following Best Explains What Is Happening When An Atom Emits Light

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Which Of The Following Best Explains What Is Happening When An Atom Emits Light?

Which of the following best explains what is happening when an atom emits light? An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light energy.

What is happening when an atom emits light?

Emission is the process of elements releasing different photons of color as their atoms return to their lower energy levels. Atoms emit light when they are heated or excited at high energy levels. … Absorption occurs when electrons absorb photons which causes them to gain energy and jump to higher energy levels.

How is light emitted from an atom quizlet?

The reason why atoms emit visible light is explained through the process of electron excitation. When energy is added to an atom the amount of potential energy increases. … When an electron becomes excited and jumps back down it emits photons equal to the amount of energy that got it excited in the first place.

Which statement best describes the process during which an electron in an atom emits light?

Which statement describes the process during which an electron in an atom emits light? An electron releases light energy as it moves from a higher energy level to a lower energy level.

When an atom emits light an electron in it moves from a higher to a lower energy level quizlet?

“When atoms absorb energy their electrons move to higher energy levels. These electrons lose energy by emitting light when they return to lower energy levels.”

When an atom emits light photons are being?

When an atom emits light a photon is created and the energy of the photon must equal the energy lost by the atom when an electron jumps from one orbit to another. A big jump for an electron requires a high energy photon or short wavelength light. But like photons they have both wave and particle properties.

When exactly is light emitted by an atom?

When the electron changes levels it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.

How is the light emitted by an atom related to its electron configuration quizlet?

How is light emitted by an atom related to its electron configuration? Light is produced when an electron moves from a higher to a lower energy level. The color of light depends on the amount of energy released.

How is light emitted by an atom related to its electron configuration?

Electrons assume only certain orbits around the nucleus. … Light is emitted when an electron jumps from a higher orbit to a lower orbit and absorbed when it jumps from a lower to higher orbit. The energy and frequency of light emitted or absorbed is given by the difference between the two orbit energies e.g.

What causes the emission of light quizlet?

When atoms absorb energy electrons move into higher energy levels. These electrons then lose energy by emitting light when they return to lower energy levels. … The light emitted by an electron moving from a higher to a lower energy level has a frequency directly proportional to the energy change of the electron.

Which of the following best describes where an electron is found in the atom?

Which of the following correctly lists the pair of subatomic particles that balance the charge of the atom? If Magnesium(mg) has become an ion with a charge of -4 how did this occur? It gained 4 electrons. Which of the following lists the two particles found together inside the nucleus of an atom?

What happens to an electron when it absorbs energy?

An atom changes from a ground state to an excited state by taking on energy from its surroundings in a process called absorption. The electron absorbs the energy and jumps to a higher energy level. In the reverse process emission the electron returns to the ground state by releasing the extra energy it absorbed.

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Which statement best describes the part of the atom that is shown by the arrow?

Q. Which statement best describes the part of the atom that is shown by the arrow? It is an electron and it has a negative charge.

When an atom emits energy the electrons move from?

When an atom absorbs energy the electrons move from their ground state to an excited state. When an atom emits energy the electrons move from a(n) excited state to their ground state and give off energy.

When atoms absorb energy the electrons move to higher?

When atoms absorb energy their electrons move to higher energy levels. These electrons loose energy by emitting light when they return to lower energy levels.

What happens when an electron in an atom absorbs a photon quizlet?

What happens when an atom absorbs a photon? The energy of the photon is stored by an electron moving from a lower energy level to a higher energy level. … There are only specific amounts of energy (called energy levels) within the atom.

What is happening within an atom that causes it to emit light in specific lines in a spectrum?

Emission lines occur when the electrons of an excited atom element or molecule move between energy levels returning towards the ground state. The spectral lines of a specific element or molecule at rest in a laboratory always occur at the same wavelengths.

When light is emitted from an atom what is conserved?

The frequency of light emitted is a function of the energy of the transition. Since energy must be conserved the energy difference between the two states equals the energy carried off by the photon.

Why do things emit light?

The atoms and molecules that make up matter typically emit light at characteristic energies. … Stimulated emission occurs when matter in an excited state is perturbed by a photon of light and gives rise to a further photon of light typically at the same energy and phase as the perturbing photon.

Is light emitted when an atom is excited or de excites?

Light is emitted when an electron: makes a transition to a lower energy level. The electron in an atom is boosted to a higher orbit and excited. When the electron returns to its original state it de-excites and emits a photon of light.

How light is emitted from an atom that has had energy passed through it?

Light is the result of electrons moving between defined energy levels in an atom called shells. When something excites an atom such as a collision with another atom or a chemical electron an electron may absorb the energy boosting it up to a higher-level shell.

How do atoms emit light based on the Bohr model?

The Bohr model was based on the following assumptions. The electron in a hydrogen atom travels around the nucleus in a circular orbit. … Light is absorbed when an electron jumps to a higher energy orbit and emitted when an electron falls into a lower energy orbit.

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How is the light emitted by an atom related to its electron configuration chegg?

The energies of the electrons of an atom are directly proportional to the wavelength of light emitted and therefore inversely proportional to the frequency of the light emitted. The larger the atom the greater the number of electrons and therefore the greater the frequency of a light.

How is the change in electron energy related to the frequency of light emitted in electron emissions?

How is the change in electron energy related to the frequency of light emitted in atomic transitions? The light emitted by an electron moving to a lower energy level has a frequency directly proportional to the energy change of the electron.

Which of the following best explains why excited atoms produce emission spectra and not continuous spectra?

Which of the following best explains why excited atoms produce emission spectra and not continuous spectra? … When exposed to white light the atoms absorb bands of light equal to the difference in energy level. The pattern for absorption and emission spectra are the same.

Which of the following best describes what an electron configuration is?

Which of the following best describes what an electron configuration is? … An electron configuration is the system used to name each principle energy level and the sublevels in which electrons are found within an atom.

Which theory describes electrons as waves?

Key points. Erwin Schrödinger proposed the quantum mechanical model of the atom which treats electrons as matter waves.

What is the approximate wavelength of light emitted by each of the salts?

2. Identify the approximate wavelength emitted by each of the salts based on the color of light observed during the flame test.

Table 4: Results of Firework Material Ignition.
Salt Color Wavelength (nm)
LiCl Red/Pink 680nm
NaCl Yellow 615nm
KCl White/Light Purple 430nm
CaCl2 Orange/Yellow/Red 640nm

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How is the light of an emission spectrum of an element produced quizlet?

Emission spectra are produced when photons are emitted from atoms as excited electrons return to a lower energy level. – All forms travel at the same speed of light but have different wavelengths. – The higher energy forms have shorter wavelengths and higher frequencies.

How is an emission spectrum formed?

An atomic emission spectrum is the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains. … Each of these spectral lines corresponds to a different electron transition from a higher energy state to a lower energy state.

What has to occur before an atom in its ground state can emit a photon?

The ground state is the lowest energy state of the atom. When the atom absorbs energy it can move to a higher energy state or excited state. … A photon is emitted when an atom moves from an excited state to its ground state or to a lower-energy excited state.

Which of the following best describes an electron orbital?

The answer is (a) A space in an atom where an electron is most likely to be found.

Which statement best describes an electron cloud?

An electron cloud represents the area around an atom’s nucleus where electrons are most likely to be found. The cloud is darkest at the nucleus and lighter farther away representing that electrons are more likely to be found closer to the nucleus than away from it.

Which of the following describes an electron?

An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom) or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii representing energy levels. The larger the spherical shell the higher the energy contained in the electron.

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