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valence shell
This term is a technical specification used almost exclusively in chemistry and physics to describe the spatial distribution of electrons. It carries a neutral, scientific connotation and is used to explain the mechanism of chemical bonding and the periodic properties of elements.
Because it refers to a specific structural component of an atom, it is treated as a countable noun. In academic writing, it is frequently paired with adjectives like outermost or filled to specify the state of the electron configuration.
Meanings
Examples
Noble gases are stable because they have a full valence shell.
Does the valence shell always contain the highest energy electrons?
I need to remember that the valence shell is the outermost layer.
Sodium loses one electron from its valence shell to become a positive ion.
The interaction between the valence shell of one atom and another creates a bond.
Wait, so the valence shell is what actually reacts during the process?
Chlorine has seven electrons in its valence shell and needs one more to be stable.
The teacher explained how electrons shift within the valence shell.