How does temperature effect flow of electron in metal?

Metals are elements or compounds that have the ability to conduct electricity and heat. There are currently 91 metals in the periodic table, and each has its own specific properties. The electrical, magnetic and structural properties of metals can change with temperature and thereby provide useful properties for technological devices.

Check this:

https://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity#Temperature_dependence