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U5 Bonding Vocab
| Term | Definition |
|---|---|
| (aq) | aqueous, dissolved in water |
| bond polarity | how equally or unequally the electrons in a covalent bond are shared. Calculated by finding the difference in electronegativity. |
| chemical bond | the force that holds two atoms together |
| chemical formula | Symbols that show the elements in a compound and how many of each atom |
| covalent bond | nonmetals share electrons |
| di | two |
| dipole | A molecule that has two poles |
| dipole-dipole forces | intermolecular forces that exist between polar molecules |
| double bond | A chemical bond formed when atoms share two pairs of electrons |
| hexa | six |
| hydrogen bonding | the intermolecular force in which a hydrogen atom that is bonded to a highly electronegative atom (FON) NOT A REAL BOND |
| intermolecular force | forces of attraction between molecules |
| ionic bond | metal and nonmetal or polyatomic ion. electrons are transferred |
| metallic bond | electrons are mobile in a metal |
| molecular compound | a covalent compound |
| molecule-ion attraction | The intermolecular force between an ion (from an ionic compound) and the oppositely charged pole of a polar molecule (water). |
| mono | 1 atom |
| nonpolar bond | a covalent bond in which electrons are shared equally |
| Oxidation number | Positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable |
| penta | five |
| polar bond | a covalent bond in which electrons are shared unequally |
| polarity of a molecule | nonpolar bonds make nonpolar molecules. Polar bonds make polar molecules if asymmetrical; polar bonds make nonpolar molecules if symmetrical (SNAP). |
| properties of covalent compounds | low melting point, low boiling point, polar compounds conduct electricity in aqueous solutions |
| properties of ionic compounds | hard, high melting and boiling points, conduct electricity in aqueous solution, soluble in polar solvents |
| single bond | A pair of shared electrons |
| solubility of covalent compounds | - like dissolves like - non polar substances dissolve non polar solvents - polar solutes dissolve in polar solvents |
| strongest intermolecular force | hydrogen bonding |
| tetra | four |
| tri | three |
| triple bond | |
| unshared pairs | a pair of valence electrons that is not involved in bonding |
| van der waals forces | temporary attractions between nonpolar molecules. Larger the molecule, the stronger the force (and higher the bp) |
| water's polarity | water is polar |
| Van der Waals forces |
Created by:
mharms
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