whitesniper001 Posted May 3, 2016 Share Posted May 3, 2016 (edited) Had a question relating to Schematic diagrams, just going through a past paper and the following two question came up: What is peculiar about these structures? Why are these structures stable? For Question 2, after having gone through my notes I answered: Layer structures are intermediate between: A totally ionic crystal with regular arrangement of ions and strong electrostatic forces. A crystal in which small discrete molecules are held together by weak forces such as van der Waals forces and hydrogen bonds. Hence the reason for their stability. I am stuck on Question 1 that asks "What is peculiar about these structures?". The only answer that I came up with after having gone through my notes is that they have " repulsion between layers which is normally shown by the double headed arrows in-between them." Since I don't have much to go by and I find It hard to even find information regarding this, are my answers valid? Or have I completely gone off track? Any input would be greatly appreciated. Edited May 3, 2016 by whitesniper001 Link to comment Share on other sites More sharing options...
studiot Posted May 3, 2016 Share Posted May 3, 2016 Look up mica, graphite & clay mineral structures. The layered structure affects physical and electrical properties.and produces anisotropies in these properties. Graphite is used as a lubricant. Find out if the bonding in graphite is ionic or covalent then look up its electrical properties Mica can be cut to ultrathin sheets Clay minerals have a hugely rich structure and hold pore water in soils. Link to comment Share on other sites More sharing options...
whitesniper001 Posted May 3, 2016 Author Share Posted May 3, 2016 Thanks for the useful direction. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now