1. Which statement supports the electron-sea model for metallic bonding? A. Meta

Question

1. Which statement supports the electron-sea model for metallic bonding?

A. Metals are not very good conductors of electricity.

B. Metals have low thermal conductivity.

C. Metals do not have enough valence electrons for localized sharing of electron pairs.

D. Metals do not easily deform their shapes.

2. What type of two-dimensional lattice describes the structure of a single layer of close-packed atoms?

3. What determines which species in a solid solution is the solute and which is the solvent?(explain it in a few sentences)

4. Rank the following polymers based on the effectiveness of their interface with biological systems.

Explanation / Answer

1. D. Metals do not easily deform their shapes because of the electron sea model which states that when a metallic bond is formed between the nuclei of many metals, it has strong electrostatic forces of attraction.

2. Square Close Packing

3. The solute in a solid solution is the species having a smaller concentration(or quantity). The solvent in a solid solution is the species having a larger concentration(or quantity).

4. The polymers are supposedly numbered 1 to 4 from left to right...

Most effective ----> 3

4

2   

Least effective ------> 1

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