Q3. What are exceptions in metals.
Ans. Exceptions among metals:
- All metals are solid but Mercury is a liquid at room temperature.
- Metals have high melting point and boiling points but gallium and cesium have very low melting points. These two metals melt if you keep them on your palm.
- Alkali metals (Lithium, Sodium, Potassium) are soft and can be easily cut with a knife. They have low density and low melting point.