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unit 5 chemistry

unit 5 chemistry ionic bonding

alloy mixture of elements that has metallic properties most commonly forms when the elements are either similar in size or the atoms of the elements are much smaller than the atoms of the other.
anion an ion that has a negative charge
cation an ion that has a positive charge
chemical bond the force that hold two atoms together; may form by the attraction of a positive ion to a negative ion or by sharing electrons
crystal lattice 3D geometric arrangement of particles in which each positive ion is surrounded by negative ions and each negative ion is surrounded by positive ions
delocalized electron electrons involved in metallic bonding that are free to move easily from one atom to the next throughout the metal ad are not attached to a particular atom
electrolyte an ionic compound whose aqueous solution conducts an electric current
electron sea model proposes that al metal atoms in a metallic solid contributes their valence electrons to form a "sea" of electrons and can explain properties of metallic solids such as malleability, conduction and ductility
formula unit simplest ratio of ions represented in an ionic compound
ionic bond electrostatic force that holds oppositely charged particles together in an ionic compound
ionic compound compounds that contain ionic bonds
lattice energy energy required to separate one mole of the ions of an ionic compound, which is directly related to the size of the ions bonded and is also affected by the charge of the ions
metallic bond attraction of a metallic cation for delocalized electrons
monatomic ion an ion formed from only one atom
oxidation number positive or negative charge of a monatomic ion
oxyanion polyatomic ion composed of an element, usually a nonmetal bonded to one or more oxygen atoms
polyatomic ion ion made up of 2 or more atoms bonded together that act as a single unit with a net charge
Created by: mrsklann



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