Covalent bonds Flashcards
Where are covalent bonds found
Covalent bonds are found between the atoms in molecules.
are diatomic molecules mainly simple or giant
Diatomic is usually simple structures.
Is covalent bonding between atoms on molecules strong (bonds)
Yes
Is bonding between individual atoms strong forces of attractoin.
No.
What is the difference between infra and intermolecular bonds
Intermolecular bonds are forces of attraction and weak, intramolecular is a powerful, strong bond.
Do covalent bonds have low or high boiling and melting points
Low.
Why is the melting point so high for giant covalent structures
Lots of covalent bonds requiring lots of energy to break them
Are giant molecules strong, what structure are they in.
Yes, they exist in a rigid structure, mostly tetrahedral. Excpect graphite.
Diamond structure
Each Carbon is joined to four others in a rigid structure (tetrahedral)
Is diamond rigid
Yes, the atoms can’t rotate around each other.
Why is graphite soft
It is layered, so it has weak forces of attraction between layers letting it slip.
Why can graphite conduct
Only three carbons are used for bonding, so each graphite has a free electron to roam along layers whcih allows it to conduct.
Approx size of nano
1-100nm
