Nano-metallic are considered the most important category of nanomaterials and nanostructures for their wide applications in both electronics and bio fields due to their antibacterial properties. Silver is the most superior metal in conductivity, and antibacterial properties, followed by copper, yet copper is preferably used due to cost. Metallic nanoparticles as Ag, Cu, Ni and Fe. NPs were prepared using chemical reduction methods of their salts using hydrazine hydrate as reducing agent and different stabilizers (ethylene glycol, polyethylene glycol 300,polyvinyl alcohol). Various analytical methods XRD and TEM were used to characterize the prepared nano-metals.