C2- bonding and structure Flashcards
metallic bonding (2)
metals and alloys
metallic structure held together by electrostatic forces between the lattice of positive ions and delocalized electrons
ionic bonding(4)
Metals and non metals
Electrons are transferred from metal to non metal forming ions
Giant ionic lattice held together by strong electrostatic forces between positive and negative ions
When dissolved/molten they do conduct electricity
forming ions
metals lose electrons forming positive ions
non metals gain electrons forming negative ions
melting point
at this temperature:
solids melt
liquids freeze
boiling point
at this temperature:
liquids boil
gases condense
Stronger bonds
More energy to overcome
high melting/boiling point
weaker bonds
less energy to overcome bond
lower melting/boiling point