If you are studying chemical bonding, you must have passed by Electron
Ionisation Potential and Electronegativity (which depends upon the first
*All* elements will have a positive ionization potential, which means that
element wants to lose electrons.
On the other hand, *all* elements have a positive electron affinity (with
exceptions and excluding noble gases), which means that *all* elements would
accept an extra electrons, but...
As another poster wrote, the enviroment will be the most important factor.
If two atoms are put togheter and one fo them has a really high electron
this atom will "try" to steal on electronfrom the other atom. Depending upon
Ionisation potential of the fromer, it will not be strong enough to hold its
and will ionise.
This balance of electron affinity and ionisation potential is best described
The octet rule is just an aproximation with lots of exceptions...
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