What are they? Ions are atoms that either gains or loses one or more electrons to form a charged atom.
Two types:
- Cation - atoms that has loss one or more electron to form a positive ion
- Anion - atoms that has gain one or more electron to form a negative ion
- When writing out the name of an Anion, remember these rules:
- Any element that becomes negative, drop the -ine ending and add -ide to the end.
- Ex. Neutral Fluorine : Anion fluoride
- Cation - atoms that has loss one or more electron to form a positive ion
- Anion - atoms that has gain one or more electron to form a negative ion
- When writing out the name of an Anion, remember these rules:
- Any element that becomes negative, drop the -ine ending and add -ide to the end.
- Ex. Neutral Fluorine : Anion fluoride
Ionic Compounds
- Both cation and anion must be present
- The net charge of the compound must be zero
- Ex. Na+ + Cl- [-----> NaCl
- Both cation and anion must be present
- The net charge of the compound must be zero
- Ex. Na+ + Cl- [-----> NaCl