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Definitions from the Web

Valence Shell

Definition:

The valence shell, also known as the outermost shell or the valence electron shell, is the outermost energy level of an atom that contains electrons. It determines an atom's reactivity and its ability to form chemical bonds with other atoms.

Senses/Usages:

1. Noun - Chemistry:

In chemistry, the valence shell refers to the electron shell that contains the valence electrons, which are involved in the formation of chemical bonds.

For example:

• The valence shell of a chlorine atom has seven electrons.
• In order to fill its valence shell, the oxygen atom requires two more electrons.

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2. Noun - Physics:

In physics, the valence shell is the outermost electron shell of an atom that participates in the formation of chemical bonds and can be involved in electrical conductivity.

For example:

• An atom with a partially filled valence shell tends to be a good conductor of electricity.
• The valence shell of a silicon atom contains four electrons.

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3. Noun - General:

In general terms, the valence shell refers to the outermost shell of an atom, regardless of its specific context in chemistry or physics.

For example:

• The valence shell determines the chemical behavior of an atom.
• Atoms with a completely filled valence shell tend to be stable and unreactive.

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