Ionic Bonding Flashcards
How are ionic compounds formed?
When a metal forms a positive ion and reacts with a non-metal negative ion because opposite charges attract.
What holds these ions together?
Very strong forces of attraction between the opposite charges. This is called electrostatic forces of attraction.
How do they bond?
The metals lose electron(s) and the non metals gain electron(s).
What type of ions does group one form?
+1 ions
What type of ions does group two form?
+2 ion
What type of ions does group three form?
3+ ions if they form ions instead of sharing them.
What type of ions does group four form?
They do not form ions except for lead and tin.
What type of ions does group five form?
-3 ions if making ions instead of sharing electrons
What type of ions does group six form?
-2 ions if they form ions instead of sharing electrons
What type of ions does group seven form?
-1 ions if they form ions instead of sharing electrons
What type of ions does group zero form?
Never form any ion compounds
How can ionic bonding be shown as a diagram?
A dot and cross diagram showing their ions in their own square brackets
Why do ionic compounds have high melting and boiling points?
Because it is hard to separate the ions as you have to overcome all of the electrostatic forces of attraction acting in all directions.
When will ionic solid melts?
When there is enough energy to separate the ions.
Why can a solid ionic compound not conduct electricity?
Because the ions are in a fixed position not being moved around and that is why ionic liquids can conduct electricity because they have ions that are free to move.
