1. Polar covalent bonds form between two nonmetal atoms that have sufficiently different electronegativities from each other. Because the electronegativity values are slightly different, the bonding electron pair isn't equally shared between the atoms.
2. Something is symmetrical when it is the same on both sides.
3. Electron 'sharing' occurs when the electrons in the outermost electron shell, or valence shell electrons, from one atom can be used to complete the outermost electron shell of another atom without being permanently transferred, as occurs in the formation of an ion.
4. If the electronegativity between two atoms is basically the same, a nonpolar covalent bond will form.
5. Symmetrical molecules are nonpolar. ... Molecules made of more than one type of covalently bonded nonmetal atoms, like carbon dioxide gas (CO2), remain nonpolar if they are symmetrical or if their atoms have relatively equal pull. Even large compounds like hexane gasoline (C6H14), is symmetrical and nonpolar
6. A nonpolar covalent bond is one in which the distribution of electron density between the two atoms is equal. The two chlorine atoms share the pair of electrons in the single covalent bond equally, and the electron density surrounding the Cl2 molecule is symmetrical.
Answers & Comments
1. Polar covalent bonds form between two nonmetal atoms that have sufficiently different electronegativities from each other. Because the electronegativity values are slightly different, the bonding electron pair isn't equally shared between the atoms.
2. Something is symmetrical when it is the same on both sides.
3. Electron 'sharing' occurs when the electrons in the outermost electron shell, or valence shell electrons, from one atom can be used to complete the outermost electron shell of another atom without being permanently transferred, as occurs in the formation of an ion.
4. If the electronegativity between two atoms is basically the same, a nonpolar covalent bond will form.
5. Symmetrical molecules are nonpolar. ... Molecules made of more than one type of covalently bonded nonmetal atoms, like carbon dioxide gas (CO2), remain nonpolar if they are symmetrical or if their atoms have relatively equal pull. Even large compounds like hexane gasoline (C6H14), is symmetrical and nonpolar
6. A nonpolar covalent bond is one in which the distribution of electron density between the two atoms is equal. The two chlorine atoms share the pair of electrons in the single covalent bond equally, and the electron density surrounding the Cl2 molecule is symmetrical.