What is the term used for the specific type of electron which is considered "free" and which aid in the formation of metallic bonds?
A) delocalized
B) inner
C) prions
D) valence

Delocalized

Explanation: The electrons that are responsible for metallic bonds are called delocalized electrons. These specific electrons are not a part of a specific atom, but the positive cations are attracted to these free delocalized electrons. When many different atoms are attracted to these electrons, it leads to the formation of a metallic bond.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

increased stability in the completion of fluorine's outer shell.