Question

1. how does delocalized bonding explain the properties of metals?

Explanation:

In metals, delocalized electrons in the electron - sea model allow for electrical conductivity as they can move freely. They also contribute to thermal conductivity by transferring heat. Ductility and malleability occur because the metal ions can slide past each other while still being held together by the delocalized electrons.

Answer:

Delocalized bonding in metals leads to electrical conductivity (due to free - moving electrons), thermal conductivity, ductility, and malleability (as metal ions can slide while still being bonded by the electron sea).