http://www.ck12.org Chapter 8. Ionic and Metallic Bonding
- What are some advantages of using steel rather than iron?
- Sodium has one valence electron per atom, while magnesium has two. Predict whether sodium or magnesium
has stronger metallic bonds. How do you think that you could test your hypothesis? - What are the coordination numbers of a metal atom in a body-centered cubic structure and in a face-centered
cubic structure? In which type are the atoms more closely packed? Iridium is one of the densest known
elements at 22.6 g/cm^3. In which crystal structure do you think iridium is more likely to crystallize?
Further Reading / Supplemental Links
- MetallicBonding (http://www.chemguide.co.uk/atoms/bonding/metallic.html
- V.K. Grigorovich,The Metallic Bond and the Structure of Metals. Nova Science Pub. Inc. (1989).
Points to Consider
Molecular compounds are a class of substances that take the form of individual molecules.
- Which types of elements make up molecular compounds?
- How is the chemical bonding within a molecular compound different from the bonding that occurs in ionic
compounds or metals? - How are the physical properties of molecular compounds different from those of ionic compounds or metals?