energy level
- noun
- /ˈɛnərdʒi ˈlɛvəl/
- Specialized
- To test his theory fully, it was necessary to know the actual pattern of energy levels for each chemical element.
- discrete energy levels
- energy levels in an atom
- higher energy level
Whereas nuclei themselves have energy levels and can wobble.
- Whereas nuclei themselves have energy levels and can wobble.
- In fact, individual photons can be emitted or absorbed when electrons change energy levels around the atoms.
- Yes, there are rules for each molecule on which energy levels they can jump from and to and how likely it is to make that jump.
- And at the atomic level, the energy levels are much higher.
- Why is there a hyperfine structure in the energy levels of the orbitals of electrons and so forth.
- It's just it's, you know, the energy levels are way, way out of the range where I would be worried about this.
- And So what I'm looking at now is if we just go from the start E your energy level.
Examples
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As shown in figure 2a, a sufficiently energetic solar photon excites an electron from a valence-band energy level to a conduction-band level.
Academic text (2012) -
When an electron transitions between energy levels, it emits or absorbs a photon, resulting in light.
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It's split into N energy levels, right.
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It's just it's, you know, the energy levels are way, way out of the range where I would be worried about this.
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And at the atomic level, the energy levels are much higher.
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As they change, the energy levels evolve.
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Be aware of your body's energy level, and take a break when you feel exhausted.
Blog text (9) -
When n is about 0.5, the two lowest energy levels are well separated from the other levels.
Academic text (2005) -
Infrared absorption gives information about the energy level structure of the conduction electrons.
Academic text (1994) -
In fact, individual photons can be emitted or absorbed when electrons change energy levels around the atoms.
Synonyms
A fixed level of energy a tiny thing like an atom can have
How High
- Specialized
- Specialized
Surface Forms
Morphology
The sense 'general atmosphere, mood, or liveliness' is directly and predictably built from 'energy' (vigor, liveliness) plus 'level' (amount or degree), so a learner who knows both words can infer this compositional meaning. The construction 'X level' meaning the amount/degree of X is a common, cross-linguistic pattern and thus readily accessible to a B1 learner.
Etymology
Energy level comes from a picture of electrons standing on flat 'steps' around an atom; each level is like a step where an electron can have a certain amount of energy. That's why the term means a specific, stable amount of energy an electron or system can have.