Bonding 2 Flashcards
give 3 properties of graphite
high melting/boiling point
can conduct electricity
lubricant/soft
explain why graphite is a lubricant
weak intermolecular forces between layers mean layers can slide over each other easily
give 3 properties of graphene
strongest material in the world
best conductor in the world
lubricant/ soft
explain why graphene is strong
giant covalent structure
strong covalent bonds
lots of energy required to break bonds
explain why graphene can conduct electricity
delocalised electrons can move/ carry charge
explain why graphene is a lubricant
weak intermolecular forces between layers mean the layers can slide over each other easily
what are the two structures of a fullerene
tube like structure = nanotube
cage like structure = bucky ball
what is the equation for a fullerene bucky ball
C60
what are the properties of a metal
high melting/boiling point
conducts electricity
malleable
explain why metals have high mp/bp
- giant metallic lattice
- strong electrostatic bonds between positive ions and negative electrons
- lots of energy required to break bonds
explain why a metal can conduct electricity
has delocalised electrons that can move/carry charge
explain why a metal is malleable
metal layers can slide over each other
define alloy
mixture of metals
explain if an alloy makes a metal less or more malleable
less bc the atoms disrupts the layers so they cannot slide over each other as easily
how big is a nanometer
1x10^-9
