Nonpolar-covalent bonds

Covalent bonds found between molecules composed of the same atoms are nonpolar covalent bonds. For example, F2 and O2 molecules have nonpolar covalent bonds. 

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Molecular Molecules (a) nonpolar Covalent bond Dispersion Low mp, bp often gas or liquid at 25°C nonconduc- h2... 

In a nonpolar covalent bond, cA = cB2 and the electron pair is shared equally between the two atoms. 

Considering that the charge on oxygen is very approximately —1, it would seem that we have to conclude that structure 2 is the best representation of this bond. This structure implies that the C=0 bond consists of two very different bonds—a nonpolar covalent bond represented by the bond line and a fully ionic bond represented by the two charges. How-... 

How many polar and nonpolar covalent bonds are there between the atoms in the ethene molecule C2H4 ... 

If the electrons are shared equally, the bond is a nonpolar covalent bond, but unequal sharing results in a polar covalent bond. 

Lewis s model established the idea of the nonpolar covalent bond, although his idea of the cubic arrangement of electrons had several major flaws, for example, how to represent a triple bond in which six elec-... 

The relative tendency of a bonded atom in a molecule to attract electrons is expressed by the term electronegativity. The higher the electronegativity, the more effectively does the atom attract and hold electrons. A bond formed by atoms of dissimilar electronegativities is called polar. A nonpolar covalent bond exists between atoms having a very small or zero difference in electronegativity. A few relative electronegativities are... 

Polarity is a physical property of a compound, which relates other physical properties, e.g. melting and boiling points, solubility and intermolecular interactions between molecules. Generally, there is a direct correlation between the polarity of a molecule and the number and types of polar or nonpolar covalent bond that are present. In a few cases, a molecule having polar bonds, but in a symmetrical arrangement, may give rise to a nonpolar molecule, e.g. carbon dioxide (CO2). 

The term bond polarity is used to describe the sharing of electrons between atoms. In a nonpolar covalent bond, the electrons are shared equally between two atoms. A polar covalent bond is one in which one... 

The ionic bond and the nonpolar covalent bond represent the two extremes of chemical bonding. The ionic bond involves a transfer of one or more electrons, and the nonpolar covalent bond involves the equitable sharing of electrons. The character of a polar covalent bond falls between these two extremes. 

A number of different polar and nonpolar covalent bonds are capable of undergoing the oxidative addition to M( ). The widely known substrates are C—X (X = halogen and pseudohalogen). Most frequently observed is the oxidative addition of organic halides of sp2 carbons, and the rate of addition decreases in the order C—I > C—Br >> C—Cl >>> C—F. Alkenyl halides, aryl halides, pseudohalides, acyl halides and sulfonyl halides undergo oxidative addition (eq. 2.1). 

Which of the letter combinations represents a nonpolar covalent bond ... 

The CD bond is a nonpolar covalent bond because its shared pair of electrons is midway between the two atoms. This shows that atoms C and D have similar electronegativities, and so the difference is zero. 

Yellowish, toxic chlorine gas (Cl2) is called a diatomic molecule. Looking at its Lewis structure, you can see why it needs to be diatomic in order to have octet stability. This is an example of a nonpolar covalent bond because the electronegativity difference is zero. 

A covalent bond in which electrons are shared unequally. A bond with equal sharing of electrons is called a nonpolar covalent bond. (p. 10)... 

A bond with the electrons shared equally between the two atoms is called a nonpolar covalent bond. The bond in H2 and the C — C bond in ethane are nonpolar covalent bonds. In most bonds between two different elements, the bonding electrons are attracted more strongly to one of the two nuclei. An unequally shared pair of bonding electrons is called a polar covalent bond. 

The correct answer is choice C. Nitrogen gas has no difference in electronegativity between the nitrogen atoms. The two nitrogen atoms will form a nonpolar covalent bond. The type of bonding present between the molecules of nitrogen gas will be dispersion forces, the forces present between nonpolar molecules. 

It is not enough to simply say that a compound has covalent bonds because there are different types of covalent bonds. One type of covalent bond is called the nonpolar covalent bond. In this case the sharing of electrons is equal between the atoms. This occurs because the electronegativities of the atoms involved are (almost) the same. For example, hydrogen gas has an equal sharing of electrons between its two atoms ... 

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