Covalent Bonding Flashcards
1
Q
What is covalent bonding?
A
Electrostatic forces of attraction between positive nuclei and pair of electrons
2
Q
Why do simple molecular structures have low melting and boiling points?
A
less energy is required to break the weak intermolecular forces of attraction between the molecules
3
Q
Why do melting and boiling points increase when the relative formula mass increases?
A
intermolecular forces of attraction increases. So, there is more energy required to break the intermolecular forces of attraction.
4
Q
Why is diamond hard?
A
lots of energy required to break apart the strong covalent bonds
5
Q
Why does graphite conduct electricity?
A
each carbon atom joins to three other carbon atoms using their outer shell electrons, there is one delocalised electron free to move
