 No other metal is verified to be more naturally diamagnetic than bismuth . ( <unk> is a different physical phenomenon . ) Of any metal , it has one of the lowest values of thermal conductivity ( after manganese , and maybe neptunium and plutonium ) and the highest Hall coefficient . It has a high electrical resistance . When deposited in sufficiently thin layers on a substrate , bismuth is a semiconductor , despite being a post @-@ transition metal . 
