Bonding Flashcards
How Is a covalent bond formed?
When two atoms share a pair of electrons.
Does metallic bonding have strong or weak electrostaric forces?
Strong
Giant covalent bp and mp are:
High mp and bp
Covalent bonding has weak…. between molecules.
Intermolecular
How is metallic bonding arranged?
Tightly packed and arranged In rows.
Does diamond have delocalised electrons and what does that mean?
No, so it doesn’t conduct electricity.
In covalent bonding, is conduction of electricity possible and why?
No, as its not made of charged particles.
In metallic bonding, is conduction of electricity possible and why?
Yes, as positive metal ions are surrounded by a sea of delocalised electrons.
Are there any bonds between layers in graphite?
No.
In covalent, what is the state at room temperature and why?
Gas or liquid, due to low BP and mp points.
When two pure metals bond, why does it become hard?
The mixture of the metals Introduces different sized metal atoms. The distorts the layers stopping stopping from sliding over one another.
Why do giant covalent structures have high BP and mp points?
A large amount to energy is needed to overcome the strong covalent bonds.
Are pure metals hard or soft?
Soft.
What is graphite an example of?
A gaint covalent structure.
In metallic bonding, what is the heat conduction like and why?
Good, because particles are very dense.
