Giant Covalent Bond Flashcards
Examples
diamond, graphite, sand
Definition
Covalent bonded compounds with different properties
Giant covalent bonded molecules commonality
ALLOTROPES of carbon
Allotrope
Different forms of the same element. Atoms and physical state is kept the same but arrangement is different
Structure of diamond
Like a family tree with 3 branches starting with only one carbon
Properties of diamond
Doesn’t conduct electricity (all valence electrons are bonding)
Hardest natural substance because highest melting point at 3500 Celsius
insoluble in water
4 allotropes of carbon
Diamond
Graphite
Graphene
Coal
Structure of graphite
atoms for hexagons which layer on top of each other repeated millions of times
Properties of graphite
soft slippery
each carbon bonds to 3 carbons
conducts electricity because of 1 free electron
insoluble in water
Sand
Silicon dioxide (SiO<2)
Sand structure
Each silicon atom bonded with 4 oxygen atoms
Each oxygen atom bonded to 2 silicon atom
in a tetrahedron
Sand properties
hard
high melting and boiling points
not soluble in water (mud)
does not conduct electricity