mercury is a metal mercury is a metal or nonmetal mercury is also known as mercury is a liquid mercury is a gas mercury is a good conductor of electricity mercury is a planet mercury is a compound mercury is a chemical mercury is a conductor mercury is an element or compound mercury is a liquid at room temperature mercury is a good conductor of heat mercury is a liquid metal because how long is a day on mercury how long is a year on mercury how far away is mercury from the sun news is a natal mercury why is mercury used in a thermometer what is mercury named after