c2 bonds Flashcards
how are ions made
when electrons are transferred between a metal and non-metal
when a metal ion loses electrons is it a positive or negative ion
positive
when a non metal ion gains an electron is it a positive or negative ion
negative
what is an ionic bond
transfer of electrons between metals and non metals
list the properties of a ionic compound (structure, boiling point, energy required, conduct electricity)
giant ionic lattice
high melting and boiling point
requires a lot of energy to break bonds
can conduct electricity when melted
what is a covalent bond
sharing electrons between non-metals
list properties of a simple molecular substance (structure, bonds, boiling points, conduct electricity)
very strong covalent bonds
weak forces of attraction
low boiling/ melting points
don’t conduct electricity
(gas/liquid at room temp)
list the properties of a polymer (long chain of repeating units)
what bonds
boiling point
energy required
strong covalent bonds
lower boiling point
more energy required than simple molecular substances
what are the 4 allotropes of carbon
diamond
graphite
graphene
fullerenes
describe the traits diamond
amount of bonds
melt/ boil point
conduct electricity
4 strong covalent bonds
high melting and boiling point
doesn’t conduct electricity
describe the traits of graphite
bonds
melting point
conduct electricity
3 bonds
no covalent bonds between layers
high melting point
conduct electricity
describe the traits of graphene
layers
weak or strong
conduct electricity
uses?
one layer
strong
conduct electricity
for electrics
describe the traits of fullerene
shape
uses
what are nanotubes/ uses
hollow balls, big surface area
cage other molecules, deliver drugs, lubricant
carbon cylinder
nanotechnology, electronics, strengthen material
what are the 3 examples of giant covalent structures and their traits
boiling point and bonds
diamond
graphite
silicon dioxide
high melting/ boiling point, strong bonds
how to change a solid to a liquid
melting
