Here's why:

* Metallic Bonding: This type of bonding occurs between metal atoms. Metals have loosely held valence electrons that can move freely throughout the entire metal structure. This creates a "sea" of delocalized electrons that attract the positively charged metal ions, holding them together.

* Zinc: Zinc is a transition metal, and like other metals, it exhibits metallic bonding.

Key characteristics of metallic bonding:

* High electrical conductivity: Due to the free-moving electrons.

* High thermal conductivity: The electrons can easily transfer heat.

* Malleability and ductility: The ability to be hammered into sheets and drawn into wires.

* Luster: The free electrons reflect light, giving metals their shiny appearance.