Recent content by didy

  1. D

    Ionic Bonds and ionic Crystals

    is that at equilibrium, energy,U=0 from the equation below? U(R) = −(A /R6 )+ (B/R12 ) i nid to differentiate the equation and equate U=0?
  2. D

    Diffraction Conditions for Hexagonal Closed Packed Lattice

    ok.. i understand lready.. thx ya...
  3. D

    Diffraction Conditions for Hexagonal Closed Packed Lattice

    What are the diffraction conditions for plans in a hexagonal closed packed lattice with atoms of the same type at 000 1/3 2/3 1/2?
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