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electron shell

electron shell

1 4.8
A group of electrons that surround an atom's centre at the same energy level
  • noun
  • /ɪˈlɛktrɒn ʃɛl/
  • Specialized
translation icon : capa de electrones
  • 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.

Examples

  • 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.

  • 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.

  • An electron shell is defined by the energy level of the electrons surrounding the nucleus of an atom.

  • Each electron shell corresponds to a specific energy level where electrons can exist around the nucleus.

  • Atoms with more electron shells tend to have higher energy levels for their outermost electrons.

How Far

valence electron
  • Specialized
1 6.5
electron shell
  • Specialized
1 4.8

Surface Forms

Morphology

electron + shell

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.