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covalent bond
covalent bond A type of chemical bond in which atoms are held together in a molecule by sharing one or more pairs of electrons in their outer shells. For example, in the water molecule (H2O) each hydrogen atom forms a covalent bond by sharing its only electron with one of the six electrons in the outer shell of the oxygen atom. Coordinate (or dative) bonds are covalent bonds in which one of the atoms supplies both the electrons. Single bonds are those in which one pair of electrons is shared; in double or triple bonds two or three pairs, respectively, are shared.
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"covalent bond." A Dictionary of Biology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "covalent bond." A Dictionary of Biology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O6-covalentbond.html "covalent bond." A Dictionary of Biology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-covalentbond.html |
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covalent bond
covalent bond A bond in which a pair (or pairs) of electrons is shared between two atoms. The bond is often represented by drawing a single line between the symbols of the two atoms that have bonded together. Sometimes the bonding is between atoms of different elements (e.g. hydrogen chloride, H–Cl), and sometimes between atoms of the same element (e.g. fluorine, F–F). The name ‘molecule’ is used to describe any uncharged particle containing covalently bonded atoms. See also hydrogen bond, ionic bond, and metallic bond.
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MICHAEL ALLABY. "covalent bond." A Dictionary of Ecology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "covalent bond." A Dictionary of Ecology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O14-covalentbond.html MICHAEL ALLABY. "covalent bond." A Dictionary of Ecology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-covalentbond.html |
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covalent bond
covalent bond A bond in which a pair (or pairs) of electrons is shared between two atoms. The bond is often represented by drawing a single line between the symbols of the two atoms that have bonded together. Sometimes the bonding is between atoms of different elements (e.g. hydrogen chloride, H–Cl), and sometimes between atoms of the same element (e.g. fluorine, F–F). The name ‘molecule’ is used to describe any uncharged particle containing covalently bonded atoms. See also HYDROGEN BOND, IONIC BOND, and METALLIC BOND.
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MICHAEL ALLABY. "covalent bond." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "covalent bond." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O7-covalentbond.html MICHAEL ALLABY. "covalent bond." A Dictionary of Plant Sciences. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-covalentbond.html |
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covalent bond
covalent bond Bond in which a pair (or pairs) of electrons is shared between two atoms. The bond is often represented by drawing a single line between the symbols of the two atoms that have bonded together. Sometimes the bonding is between atoms of different elements (e.g. hydrogen chloride, H—Cl), and sometimes between atoms of the same element (e.g. fluorine, F—F). The name ‘molecule’ is used to describe any uncharged particle containing covalently bonded atoms. See also IONIC BOND; and METALLIC BOND.
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AILSA ALLABY and MICHAEL ALLABY. "covalent bond." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "covalent bond." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-covalentbond.html AILSA ALLABY and MICHAEL ALLABY. "covalent bond." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-covalentbond.html |
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covalent bond
covalent bond A bond in which a pair (or pairs) of electrons is shared between two atoms. The bond is often represented by drawing a single line between the symbols of the two atoms that have bonded together. Sometimes the bonding is between atoms of different elements (e.g. hydrogen chloride, H—Cl), and sometimes between atoms of the same element (e.g. fluorine, F—F). The name ‘molecule’ is used to describe any uncharged particle containing covalently bonded atoms.
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Cite this article
MICHAEL ALLABY. "covalent bond." A Dictionary of Zoology. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "covalent bond." A Dictionary of Zoology. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O8-covalentbond.html MICHAEL ALLABY. "covalent bond." A Dictionary of Zoology. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-covalentbond.html |
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covalent bond
covalent bond Chemical bond in which two atoms share a pair of electrons, one from each atom. Covalent bonds with one shared pair of electrons are called single bonds; double and triple bonds also exist. The molecules tend to have low melting and boiling points and to be soluble in nonpolar solvents. Covalent bonding is most common in organic compounds.
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"covalent bond." World Encyclopedia. 2005. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "covalent bond." World Encyclopedia. 2005. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O142-covalentbond.html "covalent bond." World Encyclopedia. 2005. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-covalentbond.html |
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covalent bond
covalent bond : see chemical bond . |
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Cite this article
"covalent bond." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "covalent bond." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-X-covalent.html "covalent bond." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-covalent.html |
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