Basic Concepts Forces that determine ionic movement Electrostatic forces >Opposite charges attract >Identical charges repel >Concentration forces > Diffusion-movement of ions through semipermeable membrane >Osmosis- movement of water from region of high concentration to low5 Basic Concepts Forces that determine ionic movement ➢Electrostatic forces ➢Opposite charges attract ➢Identical charges repel ➢Concentration forces ➢Diffusion – movement of ions through semipermeable membrane ➢Osmosis – movement of water from region of high concentration to low