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lattice structure (molecular lattice (bond (covalent bond (factors…

- - - - bond polarity: 对称是non-polar
      - factors increasing the strength
        
        shorter bond length 原子越大，bond越长
        
        delta E, electronegativity less than 1.8
        
        stronger bond energy
      - type
        
        sigma(along the axis) & pi bond(overlap)
        
        single/double/triple
      - definition
      - dative/coordinating bond 主要在transition metal，和 lewis acid/base 里
  - - - SP2: 3 domains
      - SP: 2 domains
      - SP3: 4 domains
    - - electron domain
      - bond angle
      - VSEPR
        
        3 domains: trigonal planar, bent, 120
        
        4 domains: tetrahedral, trigonal planer, bent, 109.5
        
        2 domains: linear, 180
        
        5 domains: trigonal bipyramidal, seesaw, trigonal planer, 90, 120, 180
        
        6 domains: octahedral, square-based pyramid, square planer
      - formal charge: FC = Valence electrons - non-bonding electrons - 1/2 Bonding electrons 越小越好
      - symbol：点，叉，线
  - - - benzene
      - ozone
        
        structure 如何画图
        
        destruction 后果
        
        importance
- - - - smaller particle size
      - F=kQ1Q2/r2
      - larger charge
- - - - metal ion size
      - F=kQ1Q2/r2
      - charge