Why do ionic compounds form?

  • 1 Replies
  • 8844 Views

0 Members and 1 Guest are viewing this topic.

*

emilio

  • Guest
Why do ionic compounds form?
« on: 14/11/2010 12:30:03 »
emilio asked the Naked Scientists:
   
Can you explain why ionic compounds are formed when a metal from the left side of the periodic table reacts with a non metal from right of the periodic table?

What do you think?
« Last Edit: 14/11/2010 12:30:03 by _system »

*

Offline bobj14

  • First timers
  • *
  • 6
    • View Profile
Why do ionic compounds form?
« Reply #1 on: 09/01/2011 20:39:16 »
The metal donates electrons to the non metal to gain a full outer shell of electrons. It is the electrostatic forces between the oppositely charged ions that is the ionic bond.

Eg.

Mg must lose 2 electrons to get a full outer shell. O must gain 2 electrons to get a full outer shell.
So they form MgO.