Question

note: to answer some of the questions, it may help to reference a periodic table. examine the image of a compound model. which type of compound, metallic or ionic, is represented in the model? why?

Explanation:

Step1: Recall properties of metallic and ionic compounds

Metallic compounds have a "sea of electrons" (delocalized electrons) around positive metal ions. Ionic compounds have fixed - position ions (positive and negative) held by electrostatic forces in a lattice but no delocalized electrons in the way metallic compounds do.

Step2: Analyze the model

In the given model, there are positive ions (green spheres with +) and delocalized electrons (blue spheres with -) moving freely around the positive ions. This is characteristic of the electron - sea model of metallic bonding.

Answer:

The compound represented in the model is metallic. This is because it shows positive ions surrounded by a sea of delocalized electrons (the blue spheres), which is the key feature of metallic bonding. Ionic compounds have fixed - position anions and cations (not a sea of freely - moving electrons around positive ions) held in a lattice by electrostatic forces.