Metals conduct electricity as they have free moving electrons which allow charge to travel through them. When in liquid form these free moving electrons are still present and therefore the metal will still conduct electricity. Metals are made up of tiny molecular regions which each have their own north and south poles. Normally these areas are randomly arranged and the metal has no magnetic properties however when in the presence of a magnetic these regions align and the metal itself becomes a magnet. When in liquid form, however, the molecules are constantly in motion and therefore even when in the presence of a magnet do not align.
^not sure if 100% correct