Please enable JavaScript.
Coggle requires JavaScript to display documents.
Ionic Bonding (Ration of cations : anions (Can be any ratio of whole…
Ionic Bonding
Ration of cations : anions
Can be 1:2 (e.g. BaCl2)
Can be 1:1 (e.g. NaCl
Can be any ratio of whole numbers
Depends on the ionic charge of cations + anions that make up the ionic compound
Ionic Compounds
Neutral (no charge)
Examples
NaCl
MgO
BaCl2
Na2CO3
Anions can be polyatomic ions
It is possible for a polyatomic ion to contain a metal atom ()e.g. (Cr2O7)2
Polyatomic ions are only anions e.g. (CO3)2- the carbon atom has a covalent bond to each oxygen atom
Cations + Anions
Constituent particles
Non-metal atoms gain electrons
Anion
Electrostatic attraction
Ionic Compound (salt)
Metal atoms lose electrons
Cation