definition of polyvalent
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polyvalent polyvalent. adj. 1. (Chemistry) chem having more than one valency. 2. (Medicine) (of a vaccine).
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covalent bond covalent bond. n. 1. (Chemistry) 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.. (Chemistry) 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.
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covalent bond bond, chemical bond - an electrical force linking atoms. double bond - a covalent bond in which two pairs of electrons are shared between two atoms. coordinate bond, dative bond - a covalent bond in which both electrons are provided by one of the atoms.
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covalent bond covalent bond-a chemical bond that involves sharing a pair of electrons between atoms in a molecule. bond, chemical bond-an electrical force linking atoms. double bond-a covalent bond in which two pairs of electrons are shared between two atoms. coordinate bond, dative bond-a covalent bond in which both electrons are provided by one of the atoms. 1  Facebook.
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Covalent or Molecular Compound Nomenclature Molecular compounds or covalent compounds are those in which the elements share electrons via covalent bonds. The only type of molecular compound a chemistry student is expected to be able to name is a binary covalent compound. This is a covalent compound made up of only two different elements. Here is a look at the nomenclature rules for molecular compounds, plus some examples of how to name the compounds. Molecular compounds contain two or more nonmetals (not the ammonium ion).
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- Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms, in the case of polyatomic ions) gains or loses electrons. A cation is a positively charged ion.
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Formulas and Nomenclature of Ionic and Covalent Compounds Polyatomic Ions. Polyatomic ions are ions that are composed of two or more atoms that are linked by covalent bonds, but that still have a net deficiency or surplus of electrons, resulting in an overall charge on the group. A metal plus a polyatomic ion yields an ionic compound. Formulas and Names of Some Polyatomic Ions
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What is a covalent bond? Share. Covalent Bond Definition: A covalent bond is a chemical link between two atoms in which electrons are shared between them. Examples: There is a covalent bond between the oxygen and each hydrogen in a water molecule (H 2 O). Each of the covalent bonds contains two electrons-one from a hydrogen atom and one from the oxygen atom. Both atoms share the electrons. Return to the Chemistry Glossary Index.
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Polar and Nonpolar Covalent Bonds: Definitions and Examples In this lesson you learned about two types of bonds: nonpolar covalent and polar covalent. Nonpolar covalent bonds are a type of chemical bond where two atoms share a pair of electrons with each other. Polar covalent bonding is a type of chemical bond where a pair of electrons is unequally shared between two atoms. In a polar covalent bond, the electrons are not equally shared because one atom spends more time with the electrons than the other atom.
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Compounds With Both Ionic and Covalent Bonds An ionic bond is a chemical bond between two atoms in which one atom seems to donate its electron to another atom. Covalent bonds, on the other hand, appear to involve two atoms sharing electrons reach a more stable electron configuration. Some compounds contain both ionic and covalent bonds. These compounds contain polyatomic ions. Many of these compounds contain a metal, a nonmetal, and also hydrogen.
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What is a covalent bond? Post. Share. Covalent Bond Definition: A covalent bond is a chemical link between two atoms in which electrons are shared between them. Examples: There is a covalent bond between the oxygen and each hydrogen in a water molecule (H 2 O).
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- Covalent-the Share of electrons between 2 or more non-metals Ionic-the Exchange of electrons between a non-metal and a metal So the answer to your question is CH4 is Covalent since both elements are non-metals.
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- Definition of tetra-. 1  1 : four : having four : having four parts tetravalent. 2  2 : containing four atoms or groups (of a specified kind) tetrachloride.
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Covalent bond A covalent bond forming H 2 (right) where two hydrogen atoms share the two electrons. A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. double bond between two given atoms consists of one sigma and one pi bond, and a triple bond is one sigma and two pi bonds. Covalent bonds are also affected by the electronegativity of the connected atoms which determines the chemical polarity of the bond.
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- A covalent bond is one in which atoms within a molecule share pairs of electrons (hence the term covalent or mutual electron state).
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- Also known as mini anterior approach hip replacement, an option for some patients requiring hip replacement surgery. 1  Introduction. 2  Total Hip Replacement Surgery. 3  Long-Term Success. 4  Types of Hip Replacement Surgeries. 5  Anterior Hip Replacement Surgery. 6  Disadvantages and Risks. 7  Outcomes. 8  Summary.
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What is a covalent bond?   A Covalent (or molecular) bond is a bond between two non-metallic elements. This means that they share electrons inside the molecules. OR A type of chemical bond in which there is mutual sharing of electrons between two atoms is called covalent bond. covalent bond is a bond between two non-metallic elements. This means that they share electrons inside the molecules. OR A type of chemical bond in which there is mutual sha … ring of electrons between two atoms is called covalent bond.
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Covalent bond A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full outer shell, corresponding to a stable electronic configuration. Covalent bonding i
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- poly-. combining form. 1. more than one; many or much: polyhedron.
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Formulas and Nomenclature of Ionic and Covalent Compounds Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules. Molecular compounds are electrically neutral. Ionic compounds are (usually) formed when a metal reacts with a nonmetal (or a polyatomic ion). Covalent compounds are formed when two nonmetals react with each other. Since hydrogen is a nonmetal, binary compounds containing hydrogen are also usually covalent compounds.
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About Covalent and Ionic Bonds Covalent bonding is a form of chemical bonding between two non metallic atoms which is characterized by the sharing of pairs of electrons between atoms and other covalent bonds.he covalent bond is formed when two atoms are able to share electrons whereas the ionic bond is formed when the sharing is so unequal that an electron from atom A is completely lost to atom B, resulting in a pair of ions. Each atom consists of protons, neutrons and electrons.
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- Covalent compounds are formed when one or more electrons are shared between atoms(nonmetal-nonmetal). Covalent compounds are generally more soluble in organic solvents than in … water, have a low melting point and do not conduct electricity well in water.
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ambivalent 1. 1  having mixed feelings about someone or something; being unable to choose between two (usually opposing) courses of action: The whole family was ambivalent about the move to the suburbs.
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Chemical bond Covalent bond: A chemical bond formed when two atoms share one or more pairs of electrons with each other. Double bond: A covalent bond consisting of two pairs of electrons. Electronegativity: A numerical method for indicating the relative tendency of an atom to attract the electrons that make up a covalent bond.
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- A polyatomic ion can form an ionic bond with another ion, and an ionic bond is a type of chemical bond. Some examples: One mole of ammonium ions plus one mole of chloride io…ns produces one mole of ammonium chloride. NH4+ + Cl- ---> NH4Cl One mole of magnesium ions plus two moles of nitrate ions produces one mole of magnesium nitrate.
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Unit 1 and 2 chemistry definition A full shell of eight electrons in the outer energy level of an atom. Covalent bond. The attractive force between two atoms that results when electrons are shared by the atoms; a chemical bond between elements with a difference in electronegativity that is less than 1.7.