Covalent Flashcards
1
Q
Diamond and Silicon
A
Atoms
2
Q
How are they bonded together?
A
In a 3D web
3
Q
What kinds of bonds?
A
Covalent bonds
4
Q
Force of attraction?
A
Strong directional force of attraction between the positive cations and negative anions.
5
Q
Melting point?
A
High. High amounts of energy is required to break the strong covalent bonds. 3D solid networks melt when the atoms are free to move from their fixed position.
6
Q
Strength
A
Hard. Lattice structure kept rigid by strong directional covalent bonds. Only great force will break them.
7
Q
Conductor?
A
No. There are no charged particles to carry the charge.
8
Q
Solubility
A
Insoluble. Any attractive forces formed between the solvent molecules and the atoms are not strong enough to overcome the covalent bonds.
