Chemistry Sem 2 Unit 1 Flashcards
Non-Polar Covalent Bond
nonmetals or metalloids
equal electron distribution
Polar Covalent Bond
nonmetals or metalloid
unequal electron distribution
Ionic Bond
metal and nonmetal
one gains electron(s)/one loses electron(s)
Metallic Bond
metals
share free electrons, creates electron sea
cation
positive
anion
negative
transition metals valence electrons
trends: electronegativity, atomic radii, metallic properties, one other?
atomic radii and metallic properties go to bottom left, others go to top right
When there are more protons than electrons, then
there is a stronger pull on electrons and the atom is smaller
Ionic solid; type of atoms
metals and nonmetals
Molecular solid; type of atoms
all nonmetal
Network covalent solid; type of atoms
metals and nonmetals
Metallic solids; type of atoms
all metal
Network covalent solid structure
formula units
Ionic solid; attractive force
ionic
molecular solid; attractive force
covalent
network covalent solid; attractive forces
covalent
metallic solid; attractive force
metallic
Ionic solid; melting point
high
molecular solid; melting point
low
network covalent solid; melting point
very high
metallic solid; melting point
very high
ionic solid; soluble
very soluble
molecular solid; soluble
soluble
network covalent solid; soluble
insoluble
metallic solid; soluble
very insoluble
ionic solid; hardness
hard
molecular solid; hardness
soft/brittle
network covalent solid; hardness
hard
metallic solid; hardness
brittle
