http://www.adamsavenuedesign.com/bonded-bronze/
metallic, ionic, covalent molecular, covalent network?
substances can be classified as metallic, ionic, covalent molecular or covalent network.
draw up a table to show the classification of these substances-
- lead -Table salt -Al(NO3)3 -Wax -Diamond - Bicarb soda
-bronze -silica - Platinum - NO2 -Water - Ammonia
Can some one also give me a simple but detailed overview of each of these classifications,
Also i am having a lot of trouble understanding the difference between covalent and ionic bonding so if some one could help me understand that would be great 
Thanks
lead >>>>>>>>>>> metallic
table salt >>>>>>> ionic
Al(NO3)3 >>>>>>> ionic
wax >>>>>>>>>>> covalent/molecular
diamond >>>>>>>> covalent network
bicarb soda (sodium bicarbonate) >>>>>> ionic
bronze >>>>>>>> metallic
silica >>>>>>>>>> ionic
platinum >>>>>>>> metallic
NO2 >>>>>>>>>> covalent/molecular
water >>>>>>>>>> covalent/molecular
ammonia >>>>>>> covalent/molecular
A COVALENT BOND results from the sharing of electrons between two atoms, like the bonding between two nonmetals.
An IONIC BOND refers to electrostatic forces that exist between ions of opposite charge. Ions may be formed from atoms by the transfer of one or more electrons from one atom to another.
METALLIC BONDS are found in metals, such as coper, iron, and aluminum. Each atom in a metal is bonded to several neighboring atoms. The bonding electrons are relatively free to move throughout the three-dimensional structure of the metal (a.k.a. the electron-sea).
A COVALENT NETWORK solid is a chemical compound in which the atoms are bonded by covalent bonds in a continuous network, like diamond or graphite.
In covalent bonding, the more electronegative atom holds the bonding electrons most of the time because it has a greater affinity for the electrons, so the electrons are 'shared' mostly by the highly electronegative atom, and sometimes by the less electronegative atom. An ionic bond is one in which the electronegativity of an atom, like fluorine, is so great that the electrons are essentially 'stolen' by the more electronegative atom and taken from the far less electronegative atom, like in lithium fluoride, LiF. So, in ionic bonding, they are certainly not 'shared' electrons, but rather 'stolen' by very electronegative atoms. The difference between covalent and ionic bonding will seem a bit fuzzy at first to you, but once you understand the concept of electronegativity and dipole moments, it will become easier to understand.
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