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inorganic full 2023 - Coggle Diagram

- - - - Open (occupies 68% )
      - close-packed : (occupies 75% )
        
        hexagonal and cubic ABAB , ABCABC
        
        Octahedral and tetrahedral
    - - most common types :
        
        cubic
        
        orthorhombic
        
        monoclinic
        
        triclinic
      - less common
        
        hexagonal
        
        tetragonal
        
        trigonal
    - - energy used to hold /build the stracture togather
  - - - Elements : Be,Ca,Co, Mg,Ti,Zn
        
        C.N = 12
    - - Elements: Ag,Al,Cd,Cu,Ni,Pb,Pt
        
        C.N=12
    - - Ba,Cr,Fe,w,alkali metals , Group 1 and 2 , due to weaker electron area
        
        C.N =8
    - - po
        
        C.N=6
  - - - cubic cell fractional coordinate
  - - - anions packed in a hcc or ccp lattice (75%) .biger in size , so dominate packing arrangement
      - cations occupying ( tetrahedralor octahedral ) holes
    - - multidirectional
      - electrostatic
        
        electrostatic attraction is non directional
      - not localized
    - - Rock salt [NaCl]
        
        Fcc
        
        octahedral holes
        
        CN=6
        
        Li X , NaX ,, KX , RbX
        
        empirical formula : 1:1
  - - - conditions :check:
        1- True compounds ( simple whole number ratios of atoms)
        2- Solid solutions ( small atoms distributed randomly in the available holes in the lattice)
    - - conditions
        
        The atomic radii of the elements are within 15% of each other
        
        The crystal structures of the two pure metals are the same
        
        The electropositive characteristics of the two metals are similar