7.Covalent Bonding and Electron-Dot Structures 0.0 / 5 ? ChemistryCovalent Bonding and Electron-Dot StructuresUniversityNone Created by: kpaul1234Created on: 23-05-21 18:55 Define a covalent bond a bond that occurs when two atoms share several (usually two) electrons 1 of 13 Define bond length the minimum-energy distance between nuclei in a covalent bond 2 of 13 Define bond dissociation energy the amount of energy necessary to break a chemical bond in an isolated molecule in the gaseous state 3 of 13 Define a polar covalent bond a bond in which the bonding electrons are attracted somewhat more strongly by one atom than by the other 4 of 13 Define Electronegativity the ability of an atom in a molecule to attract the shared electrons in a covalent bond 5 of 13 Define an Electron-dot structure e a representation of a molecule that shows valence electrons as dots; also called a Lewis structure 6 of 13 Define a Single Bond a covalent bond formed by sharing two electrons between atoms 7 of 13 Define a Double Bond a covalent bond formed by sharing four electrons between atoms 8 of 13 Define a Triple Bond a covalent bond formed by sharing six electrons between atoms 9 of 13 Define a Radical a covalent bond formed by sharing six electrons between atoms 10 of 13 Define a resonnance hybrid an average of several valid electron-dot structures for a molecule 11 of 13 Define a formal charge an electron bookkeeping device that tells whether an atom in a molecule has gained or lost electrons compared to an isolated atom 12 of 13 State the equation for formal charge Formal charge=(no of valence electrons in free atom) - 1/2(no of bonding electrons)-(no of nonbonding electrons) 13 of 13
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