GEOL 2540 Lecture Notes - Lecture 3: Enstatite, Gold, Sodium Chloride
14 Apr 2016
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Document Summary
Ionic transfer of valence electrons transfer of valence electrons from one atom to another; electrostatic attraction. Covalent sharing of one or more pairs of valence electrons between two atoms through hybrid orbitals hybrid orbitals. Metallic valence electrons are shared among all atoms in the crystal. The tendency of an atom to acquire a negative charge ( affinity for electrons) Many minerals contain charged groups of atoms ( radicals) that are more tightly bonded than other atoms in the structure (co3)2-; (po4)3-; (bo3)3-, (so4)2-, etc. Bonding that does not involve valence electrons valence electrons. Van der waals bond attraction between molecules with asymmetric charge distribution due to short-term polarization of the molecule l f th ti l i l. Attraction between hydrogen and highly electronegative anions ( o, f ) g y g. Na and cl ions as discrete units connected by bonds. The number of nearest anions surrounding any given cation in the structure.
