Studied by 4 peopleIonic bond definition
The electrostatic force that holds oppositely charged particles together in this type of compound. The metal ion transfers electrons to an atom lacking a full valence shell, giving the atoms positive and negative charges. These oppositely charged cations and anions then attract, forming an ion.
metallic definition
The attraction of a metallic cation for delocalized electrons. The delocalized valence electrons fully encircle every cation, holding the metal atoms together in a lattice form.
covalent definition
A chemical bond that results from the sharing of valence electrons. These type of bonds are formed between two nonmetal atoms or nonmetal atoms and metalloids.
ionic bond examples
NaCl CuSo4
metallic bond examples
Fe Ti
covalent bond examples
Cl2 Sugar Co2 wax oil
description of ionic bonding
each positive ion is completely surrounded. by negative ions, just as each negative ion is completely surrounded by positive ions, causing the cations and anions to attract.
description of metallic bonding
each metal atom is closely surrounded by 8 to 12 other metal atoms; however, there are delocalized electrons which serve as a "buffer" and cause the metal atoms to attract rather than repel.
description of network covalent bonding
the atoms are bonded by covalent bonds in a continuous structure.
description of molecular covalent bonding
the molecules have strong intramolecular covalent bonds with weak intermolecular connections.
ionic melting point
high (melting)
metallic melting point
moderately high with great variety (melting)
network melting point
very high (melting)
molecular melting point
low (melting)
ionic and metallic boiling point
high (boiling)
network boiling point
very high (boiling)
molecular boiling point
low (boiling)
ionic conductivity
not in solid state; conducts when dissolved in water/in liquid state
metallic conductivity
conducts in solid state
network conductivity
no, graphite is an exception
molecular conductivity
no
ionic physical properties (3)
hard, rigid, brittle
metallic physical properties (2)
malleable, ductile
network physical properties (3)
hard, stiff, brittle
molecular physical properties (2)
often liquid or gas at room temp., relatively soft
Note 
Flashcard (29)