CHY 102 Lecture Notes - Lecture 11: Lattice Energy, Sodium Chloride, Joule
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Nacl (s) na+ (g) + cl- (g) rh lattice = -787 kj mol-1 features of lattice energy: ____________________, the __________ of the ions, and their arrangement in the solid. Coulomb"s law calculates the potential energy of two interacting charged particles: we can use coulomb"s law to discuss trends in lattice energy. Arrange the following ionic compounds in order of increasing lattice energy: naf, csi, cao. Bonding in ionic compounds can be explained in terms of opposite charges attracting each other. Lewis suggested that an alternative way for an atom to achieve a stable octet would be to share electrons with other atoms. A bond formed from the sharing of electrons is called. Note: in lewis structures, shared electrons are usually indicated with a line connecting the two atoms. In covalent compounds the number of covalent bonds a nonmetal will form tends to equal to the number of electrons needed to form an octet.