Topic 2 - States of matter, small molecules and giant covalent structures Flashcards
1
Q
List the four state symbols.
A
s, g, l, aq
2
Q
What are the limitations of the particle model in terms of changing state?`
A
The particles are shown as solid spheres without any forces in between.
3
Q
Why do simple/small molecules not conduct electricity?
A
They have no overall charge.
4
Q
What is a simple molecular substance?
A
A molecule containing a few atoms joined with covalent bonds
5
Q
Why are simple molecules weak?
A
Whilst the covalent bonds are strong, the intermolecular forces are very weak which is what you have to break to melt them.
