Definition of covalent in English:

covalent

adjectivekəʊˈveɪl(ə)ntˌkoʊˈveɪlənt

Chemistry

Relating to or denoting chemical bonds formed by the sharing of electrons between atoms.
〔化〕共价的。常与IONIC 相对
Often contrasted with ionic
Example sentencesExamples
- Pairs of electrons that are not shared in covalent bonds are lone pairs.
- In a covalent diatomic molecule, a difference in the electronegativity of the atoms will result in a dipole moment.
- These rules are the result of assigning all electrons in a covalent bond to the more electronegative atom in the bond.
- The three shared pairs of electrons between the two carbon atoms create a triple covalent bond.
- To complete an octet, each oxygen must share two electrons in a covalent bond.

Derivatives

covalence

noun

Chemistry

It is argued that the terms valence, covalence, hypervalence, oxidation state, and coordination number are often confused and misused in the literature.
Example sentencesExamples
- We describe a rough estimate that suggests such effects on the degree of covalence are very small.
- The iron atom in hæm compounds has its six covalences directed toward the six corners of an octahedron.
- Indeed the measurements of bond length make this the best single formula that can be written with two single and two double S-O bonds, making six covalences in all.
- Upon thorough research, use of variances, covalences, de gauss and poisson formulas it looks like the most used word until now has been ‘flash’.

covalency

noun

Chemistry

Ni 2+ has a highly polarizable electron shell that results in greater covalency in its bonds.
Example sentencesExamples
- Thus, even though water and hydrogen peroxide are markedly polar substances, their compositions are correctly given by the covalencies of hydrogen and oxygen.
- I plan to use this to emphasize polar and non-polar covalencies as a real-life application.
- As a first-order approximation, spin densities and covalencies can be considered as complementary data to each other.
- The first rule states that covalencies are more likely to be formed as the number of electrons to be removed or donated increases, so that highly charged ions are rare or impossible.

covalently

adverb

Chemistry

A neutral group of atoms bonded together covalently is called a molecule, and a substance which is made up of molecules is called a molecular substance.
Example sentencesExamples
- Linear polymers are long, chainlike molecules covalently bonded in a rigid manner.
- Hybridization explains the molecular geometry of the resulting covalently bonded molecules.
- Many nitrates are ionic in nature, but heavy metal nitrates and anhydrous nitrates have covalently bonded nitrate groups.
- Organic compounds and other covalently bonded molecules do not dissolve well in water.

Definition of covalent in US English:

covalent

adjectiveˌkōˈvāləntˌkoʊˈveɪlənt

Chemistry

Relating to or denoting chemical bonds formed by the sharing of electrons between atoms.
〔化〕共价的。常与IONIC 相对
Often contrasted with ionic
Example sentencesExamples
- To complete an octet, each oxygen must share two electrons in a covalent bond.
- In a covalent diatomic molecule, a difference in the electronegativity of the atoms will result in a dipole moment.
- These rules are the result of assigning all electrons in a covalent bond to the more electronegative atom in the bond.
- The three shared pairs of electrons between the two carbon atoms create a triple covalent bond.
- Pairs of electrons that are not shared in covalent bonds are lone pairs.

单词	covalent
释义	Definition of covalent in English: covalent adjectivekəʊˈveɪl(ə)ntˌkoʊˈveɪlənt Chemistry Relating to or denoting chemical bonds formed by the sharing of electrons between atoms. 〔化〕共价的。常与IONIC 相对 Often contrasted with ionic Example sentencesExamples Pairs of electrons that are not shared in covalent bonds are lone pairs. In a covalent diatomic molecule, a difference in the electronegativity of the atoms will result in a dipole moment. These rules are the result of assigning all electrons in a covalent bond to the more electronegative atom in the bond. The three shared pairs of electrons between the two carbon atoms create a triple covalent bond. To complete an octet, each oxygen must share two electrons in a covalent bond. Derivatives covalence noun Chemistry It is argued that the terms valence, covalence, hypervalence, oxidation state, and coordination number are often confused and misused in the literature. Example sentencesExamples We describe a rough estimate that suggests such effects on the degree of covalence are very small. The iron atom in hæm compounds has its six covalences directed toward the six corners of an octahedron. Indeed the measurements of bond length make this the best single formula that can be written with two single and two double S-O bonds, making six covalences in all. Upon thorough research, use of variances, covalences, de gauss and poisson formulas it looks like the most used word until now has been ‘flash’. covalency noun Chemistry Ni 2+ has a highly polarizable electron shell that results in greater covalency in its bonds. Example sentencesExamples Thus, even though water and hydrogen peroxide are markedly polar substances, their compositions are correctly given by the covalencies of hydrogen and oxygen. I plan to use this to emphasize polar and non-polar covalencies as a real-life application. As a first-order approximation, spin densities and covalencies can be considered as complementary data to each other. The first rule states that covalencies are more likely to be formed as the number of electrons to be removed or donated increases, so that highly charged ions are rare or impossible. covalently adverb Chemistry A neutral group of atoms bonded together covalently is called a molecule, and a substance which is made up of molecules is called a molecular substance. Example sentencesExamples Linear polymers are long, chainlike molecules covalently bonded in a rigid manner. Hybridization explains the molecular geometry of the resulting covalently bonded molecules. Many nitrates are ionic in nature, but heavy metal nitrates and anhydrous nitrates have covalently bonded nitrate groups. Organic compounds and other covalently bonded molecules do not dissolve well in water. Definition of covalent in US English: covalent adjectiveˌkōˈvāləntˌkoʊˈveɪlənt Chemistry Relating to or denoting chemical bonds formed by the sharing of electrons between atoms. 〔化〕共价的。常与IONIC 相对 Often contrasted with ionic Example sentencesExamples To complete an octet, each oxygen must share two electrons in a covalent bond. In a covalent diatomic molecule, a difference in the electronegativity of the atoms will result in a dipole moment. These rules are the result of assigning all electrons in a covalent bond to the more electronegative atom in the bond. The three shared pairs of electrons between the two carbon atoms create a triple covalent bond. Pairs of electrons that are not shared in covalent bonds are lone pairs.
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