There are some exceptions though. For example, mercury is a liquid at room temperature. The metals in Group 1, such as lithium, sodium and potassium, are all soft. Many non-metals have low melting ...

img src="https://img.jagranjosh.com/images/2024/May/3152024/periodic-table-of-elements-chemistry.jpg" width="1200" height="675" /> Periodic Table Chemistry: The ...