What is a characteristic feature of metallic properties?

A characteristic feature of metallic properties is their high melting and boiling points. This is primarily due to the strong electrostatic forces that exist between the delocalized electrons and the positively charged metal ions in the metallic lattice. These forces require a significant amount of energy to overcome, resulting in high melting and boiling points for most metals.

Additionally, these high temperatures are indicative of the stability of the metallic bond, which is a key aspect of metallic substances. While some metals may have relatively low melting points, the general trend across most metallic elements is that they exhibit high melting and boiling points compared to non-metals and metalloids. This property is essential in various applications, as metals can maintain structural integrity and performance at elevated temperatures.