- Bismuth: Bismuth is a brittle, silvery-white metal that is a poor conductor of heat and electricity. It is often used in low-melting alloys and solders.
- Antimony: Antimony is a brittle, silvery-white metal that is also a poor conductor of heat and electricity. It is often used in alloys to increase their hardness and strength.
- Tellurium: Tellurium is a brittle, silvery-white metalloid that is a very poor conductor of heat and electricity. It is often used in semiconductors and thermoelectric materials.
- Mercury: Mercury is a silvery-white liquid metal that is a poor conductor of heat but a very good conductor of electricity. It is often used in thermometers, barometers, and other scientific instruments.
It is important to note that the conductivity of a metal can be affected by its purity, temperature, and physical structure. For example, the conductivity of a metal can decrease as its temperature increases, and the conductivity of a metal can increase as its purity increases.