electron shell
- noun
- /ɪˈlɛktrɒn ʃɛl/
- Specialized
- So when you walk into a wall, the electron shells of the wall's atoms encounter the electron shells of your atoms.
- electron shells of an atom
If you bring these nuclei close together, then their electron shells will be much farther apart than the nuclei.
- If you bring these nuclei close together, then their electron shells will be much farther apart than the nuclei.
Examples
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She will work with the outer electron shells.
Fiction book (2000) -
The atoms are being repelled by their electron shells.
Blog text (13) -
That's where the idea of electron shells comes from.
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So when you walk into a wall, the electron shells of the wall's atoms encounter the electron shells of your atoms.
Blog text (26) -
If you bring these nuclei close together, then their electron shells will be much farther apart than the nuclei.
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An electron shell is defined by the energy level of the electrons surrounding the nucleus of an atom.
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Each electron shell corresponds to a specific energy level where electrons can exist around the nucleus.
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Atoms with more electron shells tend to have higher energy levels for their outermost electrons.
How Far
- Specialized
- Specialized
Surface Forms
Morphology
The meaning is directly compositional: a B1 learner who knows 'electron' (a particle in atoms) and 'shell' (an outer layer or case) can infer a shell made of electrons surrounding the nucleus. The use of 'shell' as an outer layer is a common metaphor across languages and follows a standard noun+noun naming pattern, so the sense is immediately derivable from the constituents.
Etymology
Electron shell uses a simple image: imagine the atom as a tiny ball with round layers, and the electrons sit in a 'shell' like a band around the center. So, electron shell means a group of electrons that share the same 'energy level' around the atom's center.