Question : Which of the following metals is always a component in an amalgam?
Option 1: Strontium
Option 2: Mercury
Option 3: Zinc
Option 4: Aluminium
Correct Answer: Mercury
Solution : The correct answer is Mercury .
Mercury metal is an essential component of an amalgam. The atomic number of this element is 80. The symbol of Mercury is Hg, given after the Greek word hydor and argyros. Mercury serves as the liquid component that binds the other metals together to form a stable, durable filling material.