The inelastic-collision model of LEED using isotropic s-wave scatterers (phase shift π/2 and damping parameter 8 Å) describes the qualitative features of experimental intensity profiles from clean surfaces. For energies above ca. 100 eV, theoretical and experimental profiles give strong scattering near the kinematical positions. From this result, the crystal structure and exposed face can be determined using the kinematical model. For a (2×2) chemisorbed monolayer, calculated intensity profiles of the extra beams show considerable, substrate-dependent, structure. However, the integrals of these profiles over a wide voltage range are in excellent agreement with the predictions of the kinematical model for the absorbate layer alone. This result is independent of the substrate, the phase shifts used to describe the adsorbate, and the position of the adsorbate normal to the substrate. Consequently, extensive structural information can be extracted from LEED using the kinematical model without making a dynamical calculation.