Because of the strong electrostatic forces between them, it takes a great deal of energy to seperate the positive and negative ions in a lattice .this means they have high melting points and boling point.
1 of 6
Why do substances with simple molecular structures have low m.p and b.p?
This is because the weak intermolecular forces break down easily.
2 of 6
Why dont covalent structure conduct electricity?
Because covalent compounds have no free electrons and no ions so they dont conduct electricity.
3 of 6
Why do metals have high m.p and b.p?
The particles in a metal are held together by metallic bonds and metallic bonds are strong and a lot of energy is neede to break them
4 of 6
Why are metals malleable?
Metals are malleable because they consist of layers of atoms. These layers can slide over one another when the metal is bent , hamperred or pressed.
5 of 6
Why do metals conduct electricity?
Metals contain electrons that are free to move in the metal structure , carrying charge from place to place and allowing metals to conduct electricity well.
6 of 6
Other cards in this set
Card 2
Front
Why do substances with simple molecular structures have low m.p and b.p?
Back
This is because the weak intermolecular forces break down easily.
Comments
No comments have yet been made