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Energy is ALWAYS conserved.
The appropriate sum of mass and energy is always conserved. If an atom emits a photon, the atom has less energy/mass, and the universe minus that atom has more energy/mass. It's like carrying some energy from here to there.
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∙ 8y ago
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What is the energy of a photon that emits a light of frequency 4.47X 1014 Hz?
2.96 x 10^-19 J
What is the energy of a photon that emits a light frequency of 7.21 x 1014 Hz?
4.78 x 10-19
What is the energy in a photon of light proportional to?
The amount of energy in a photon of light is proportional to the frequency of the corresponding light wave.... frequency of the electromagnetic radiation of which the photon is a particle.
Is kinetic energy lost?
When an electron absorbs a photon of light, it gains energy. This is quantized. When an electron gains energy, it moves to a higher energy level. Thus giving the equation hf=mcv. Therefore, as more energy is given to the electron, it gets 'excited' and maintains the energy by moving to a higher energy leve.
What is a photon-?
A particle of light. Or, in general, of an electromagnetic wave.
What is the energy of a photon the emits a light of frequency 6.42 1014 Hz?
4.25 10-19 j
What is the energy of a photon that emits a light frequency of 7.21 x 1014 Hz?
4.78 x 10-19
What is the energy of a photon that emits a light of frequency 4.47X 1014 Hz?
2.96 x 10^-19 J
What is the energy of a photon that emits a light of frequency 4.47 x 1014 Hz?
2.96 x 10-19 J
What happens when the electrons return from the excited state to the ground state?
it looses energy , it gives off light in the form of a single photon.
The light bearing packet of energy emitted by an electron is called a?
A packet of light energy is called a photon.
What is the energy of photon that emits a light of frequency (4.47)(10 exponent 14) Hz?
The energy is 2,9619.e-19 J.
What is the energy in a photon of light proportional to?
The amount of energy in a photon of light is proportional to the frequency of the corresponding light wave.... frequency of the electromagnetic radiation of which the photon is a particle.
An atom that undergoes excitation and de-excitation emits?
A quanta of light (one photon).
When metal is heated the light emitted is because it gains energy as they return to lower energy levels?
Just the opposite. As an electron returns to a lower energy level, it emits a packet (quantum) of energy that may be a visible photon.
Is kinetic energy lost?
When an electron absorbs a photon of light, it gains energy. This is quantized. When an electron gains energy, it moves to a higher energy level. Thus giving the equation hf=mcv. Therefore, as more energy is given to the electron, it gets 'excited' and maintains the energy by moving to a higher energy leve.
When electron drops to a lower energy level what is the energy of the proton released?
You may be confusing "proton" with "photon". A proton is a positively-charged particle contained within the nucleus of an atom. A photon is a discrete unit of energy normally expressed as light. Around the nucleus of the atom, there are some electrons in energy levels. When an atom absorbs energy, it absorbs a specific amount, or "quantum" of energy and the electron boosted to a higher energy level. When the electron drops to a lower energy level, it emits a photon in the form of light at a specific energy and frequency.
