c2 - bonding, structure and properties of matter Flashcards
for ionic bonding the particles are…
oppositely charged ions
for covalent bonding the particles are…
atoms which share pairs of electrons
for metallic bonding the particles are…
atoms which share delocalised electrons
ionic bonding occurs in compounds formed from…
metals combined with non metals
covalent bonding occurs in compounds of…
non metals
metallic bonding occurs in…
metallic elements and alloys
what happens to metal atoms when a metal reacts with a non metal
metal atoms lose electrons to become positively charged ions
what happens to non metal atoms when a metal reacts with a non metal
non metal atoms gain electrons to become negatively charged ions
how can the electron transfer during the formation of an ionic compound be represented
dot and cross diagram
what is an ionic compound
a giant structure of ions
how are ionic compounds held together
by strong electrostatic forces of attraction between oppositely charged ions
melting and freezing take part at the … point
melting
boiling and condensing take part at the … point
boiling
the amount of energy needed to change state from solid to liquid
and from liquid to gas depends on what
the strength of the forces
between the particles of the substance
what are the limitations to the simple particle model
in the model there are no forces all particles are represented as
spheres the spheres are solid
