Review of Ionic Compounds. In an ionic compound, One element [ non-metal ], can strongly pull electrons away from other element and become a negative ion [a n ion],as the element fills it’s valence shell
In an ionic compound,
have NON METALS bonding with NON METALS
B C N O F
Si P S Cl
As Se Br
Both NON METAL elements in a molecular compounds have similar power to pull electrons.
So instead of gaining & losing electrons [as in ionic], molecular compounds SHAREelectrons between two NON-METAL elements, like a tug of war between two equals.
A COVALENTBONDbetween 2 fluorine atoms is how diatomic fluorine gas (F2) is formed
Different types of covalent bonds form depending on the number of electrons being shared.
CO2 C O O carbon dioxide
3. Write the subscript for the number of atoms represented by the prefix.
4. NO REDUCING dinitrogen tetroxide N2O4 [not NO2]
Example 1 - sulphur trioxide
Example 2 - diphosphoruspentasulphide
3. Write the prefix and the name of the element.
Lets look at their Electron structures
It is easier to just look at the valence electrons with a lewis dot structure