CHEM 031 Lecture Notes - Lecture 5: Transition Metal, Electronegativity, Sodium Sulfate

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= partial charge = non-metal/non-metal (electronegativity differences) Q1 and q2 = + . energy = + . Q1 is + and q2 is - energy = - (bonding) 1: covalent , electron sea model for metals. Another way to represent valence electrons of an element. An element uses its valence electrons for bonding (both ionic & covalent. Electrons go in one at a time before pairing. Ex: oxygen = o = group via = valence electrons = 2s 2 2p 4. Ex: nacl = sodium chloride = na [cl] (cl w 8 dots & na with none) Sharing of electrons, not a gain or loss. Inherent desire to reach a noble gas configuration.