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covalent bond

[ koh-vey-luhnt bond ]

noun

, Chemistry.
  1. the bond formed by the sharing of a pair of electrons by two atoms.


covalent bond

noun

  1. a type of chemical bond involving the sharing of electrons between atoms in a molecule, esp the sharing of a pair of electrons by two adjacent atoms


covalent bond

/ kō-vālənt /

  1. A chemical bond formed when electrons are shared between two atoms. Usually each atom contributes one electron to form a pair of electrons that are shared by both atoms.
  2. See more at coordinate bond


covalent bond

  1. A chemical bond in which two atoms share some of their valence electrons , thereby creating a force that holds the atoms together.


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Notes

Many molecules in living systems are held together by covalent bonds.

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Word History and Origins

Origin of covalent bond1

First recorded in 1960–65

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Example Sentences

The hydrogen wants to react with the oxygen, but the fuel cell is designed in such a way that a series of chemical reactions must occur in order for the hydrogen to form a covalent bond with the oxygen.

Atoms connected by covalent bonds are considered part of a single molecule, while those connected by hydrogen bonds can remain separate entities.

Chemistry students the world over are familiar with covalent bonds and hydrogen bonds.

This behavior indicated that the hydrogen atom was shared between the two fluorine atoms equally, rather than being closely bound to one fluorine atom by a covalent bond and more loosely bound by a typical hydrogen bond to the other.

Stronger links between neighboring atoms in the lattice also help, and, he said, “carbon has very strong covalent bonds.”

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