The laser energy deposition coefficient, the electron thermal conduction coefficient, and the resistivity are three important physical quantities in plasma physics. For a multi-ion-component plasma, considering only the collisional interaction between electrons and ions, starting from the kinetic equation in the Fokker-Planck approximation, and using multi-timescale method, a unified derivation of the laser energy deposition coefficient, electron thermal conduction coefficient, and resistivity in the plasma is presented.