Yes, metals will conduct electricity in liquid form because of the free electrons.
Mercury is a reddish liquid element that does not conduct electricity in its liquid form.
By definition, a solid metal, including liquid mercury, in its elemental form should conduct electricity. Under what condition a metal cannot conduct electricity? Normally when a metal is oxidized, the result is highly resistive, but then the oxide film (such as rust) is no longer considered metallic. Some metals, such as sodium, don't normally exist in its elemental form in nature. If these metals are somehow kept out of trouble (air), they too should conduct electricity. ==================================
As aluminium oxide is an ionic compound, it conducts electricity in molten state.
Generally, pure water is a poor conductor of electricity. However, water with impurities such as salts or minerals can conduct electricity better. Other liquids that are good conductors of electricity include acids, bases, and some metals in liquid form like mercury.
Iron melts and becomes liquid at an 2800 degrees Fahrenheit. It can still conduct electricity, but, like all conductors, it conducts better at lower temperatures.
No, CaO (calcium oxide) is an ionic compound that does not conduct electricity in its solid form. It only conducts electricity when dissolved in water or melted to form a liquid state.
Potassium bromide can conduct electricity when it is in molten form or when it is dissolved in water. In these cases, the ions are free to move and carry a charge, allowing for the conduction of electricity.
Naphthalene is a Ionic Substance. Hence, Ionic substance do not conduct when solid. But they do conduct when melted or dissolved in water - and they decompose at the same time. Therefor molten Naphthalene conduts electricity as the ions become free to move when dissolved in water.
Any solid metal plus liquid mercury in their elemental form.
Metals conduct electricity. Metals ionise [lose one or more electrons] to form positively charged ions - cations.
Potassium is a metal. Like other metals, potassium will conduct electricity in both the solid and liquid (or molten) forms. But because potassium is so very reactive, you will never find it in metallic form on earth, unless it is specially prepared and stored, usually in a sealed container submerged in an inert liquid. Potassium is found in nature as ionic salts. Ionic salts conduct electricity in a molten state, but not a solid state.
The liquid that does not conduct electricity is called an insulator. Insulators do not allow the flow of electric current through them due to their high resistance. Examples include water in its pure form, oil, and rubber.