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Unit 4 Chem

TermDefinition
Binary compound Compound containing 2 ELEMENTS (example: CO)
Bond Forces of attraction that hold atoms together in a molecule or compound
Compound A substance composed of two or more atoms from different elements CHEMICALLY bonded together.
Covalent Bond Chemical bond involving the SHARING of electrons between two nonmetal atoms; electronegativity difference between elements typically LESS than 1.7
Dipole A difference in charge between 2 atoms in a bond
Dissociate A process in which molecules separate or split into smaller particles such as ions usually in a reversible manner.
Endothermic Energy is CONSUMED as a product of a chemical reaction
Exothermic Energy is RELEASED as a product of a chemical reaction
Intermolecular forces (IMF's) Weak forces between molecules that hold the molecules to one another; not actually chemical bonds
Ionic bonds Chemical bond involving the TRANSFER of electrons between a metal and nonmetal atom (metals lose, nonmetals gain); electronegativity difference between elements typically GREATER than 1.7
Molecule A COVALENTLY bonded substance; can be atoms of the same element
Nonpolar molecules A molecule with equal sharing of electrons; a symmetrical covalent molecule
Octet Rule Atoms bond together in order to have 8 electrons in their valence shell
Oxidation number The "charge" an element has within a compound
Polar molecule A covalent molecule with an unequal sharing of electrons; an asymmetrical covalent molecule
Polyatomic ions Atoms of two or more elements chemically bonded together and having a NET CHARGE
Stock system System using Roman numeral (appearing in parenthesis) after the element symbol to indicate the oxidation number of a TRANSITION METAL
Ternary compund Compund containing 3 ELEMENTS (Example C6H12O6)
Created by: Sillyflamingo
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