M1 topic 4 part 2 bonding Flashcards
what types of bond structures are there (3)
molecules
network
lattice
how do you get a molecule structure
when two non metals bond (covalent bonding)
how do you get a network stucture
when a metalloid and a non metal bond
how do you get a lattice structure
when a metal and a non metal bond (Ionic)
what the characteristics of molecular bonding (3)
low melting point
low boiling point
non conductors
what are the characteristics of network bonding (3)
high melting point
high boiling pint
non conductors
what are the characteristics of lattice bonding (3)
varying Melting point (generally high)
varying boiling point (generally high)
good conductor in liquid or aqueous form
what types of forces are there (4)
dispersion forces (temp dipole)
covalent bonds
electrostatic forces
Hydrogen bonds
are dispersion forces weak or strong
weak
are covalent bonds strong or weak
strong
are electrostatic bonds strong or weak
strong
are hydrogen bonds weak or strong
strong
which elements do hydrogen bonds occur with (3)
oxygen
nitrogen
fluorine
when do Hydrogen bonds occur
between molecules