Final answer:
In metallic bonds, the mobile electrons surrounding the positive ions are called an electron sea.
Explanation:
In metallic bonds, the mobile electrons surrounding the positive ions are called a electron sea. This electron sea concept refers to the delocalized electrons that are free to move throughout the 3D structure of metals, attracted to the positive atomic nuclei.
Learn more about Metallic Bonds here:
https://brainly.com/question/29762857
