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KOTELCHEMMODULE7
KOTEL CHEMISTRY MODULE 7 VOCABULARY
| Question | Answer |
|---|---|
| chemical bond that results from the sharing of valence electrons | covalent bond |
| forms when two or more atoms covalently bond and is lower in potential energy than its constituent atoms | molecule |
| a model that uses electron-dot structures to show how electrons are arranged in molecules. Pairs of dots or lines represent bonding pairs | Lewis Structure |
| atoms sharing one pair of electrons | single bond |
| atoms sharing two pairs of electrons | double bond |
| atoms sharing three pairs of electrons | triple bond |
| distance between two bonded nuclei at the position of maximum attraction | bond length |
| chemical reaction or process in which a greater amount of energy is required to break the existing bonds in the reactants than is released when the new bonds form in the product molecules | endothermic reaction |
| chemical reaction or process in which more energy is released than is required to break bonds in the initial reactants | exothermic reaction |
| energy required to break a bond | bond energy |
| contains hydrogen and one other element | binary acid |
| contains hydrogen, oxygen, and a third element | oxyacid |
| molecular model that uses symbols and bonds to show relative positions of atoms | structural formula |
| condition that occurs when more than one valid Lewis structure exists for the same molecule | resonance |
| based on an arrangement that minimizes the repulsion of shared and unshared pairs of electrons around the central atom | VSEPR theory |
| process in which atomic orbitals are mixed to form new, identical hybrid orbitals. | hybridization |
| type of bond that forms when electrons are not shared equally | polar covalent bond |
| type of bond that forms when electrons are shared equally | nonpolar covalent bond |
| weak forces of attraction that act between molecules | intermolecular forces |