which element is likely to be the best conductor of electricity?\ncopper\nlithium\niodine\nsilicon

Brief Explanations:

Copper is a well - known metal with high electrical conductivity. Metals generally have delocalized electrons which allow for the easy flow of electric current. Lithium is also a metal but has lower conductivity than copper. Iodine is a non - metal and non - metals are poor conductors of electricity. Silicon is a semiconductor, which has conductivity between that of a metal and a non - metal.

Answer:

copper