The OCTET RULE
OF EIGHT ( 8 )
has no exceptions
Copyright 1983, 1994, 2004 by Gerald E. Mowery
No Claim on Government information 
The Octet Rule applies to every element, with NO exceptions.
ELEMENTS HAVE TWO CONFIGURATIONS 
One called an environmental configuration and the other a basic configuration.

Environmental conditions create PAIRED electron movement between energy levels.

EXAMPLE -- HOLMIUM. 135 This elements has an Environmental  configuration of 1+2(2-8-18-29-8-2.
The introduction of a catalyst,  moves this configuration BACK to  the  basic configuration. 1+2(2-8-18-18-18-3.
This results in a Charge of 3 and the desire to combine with a charge of 5.
Illustrating, that:
THE  OCTET RULE OF EIGHT  has no exceptions.
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THE RULE OF EIGHT
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Example: Neptunium  2-8-18-00-32-22-9-2  to 2-8-18-00-32- 18-8-7  
Example    NO
    NITROGEN  
CONFIGURATION
             1
          2** 2
          5** 5
    OXYGEN   
CONFIGURATION
             1
          2** 2
          6** 6
           15                         PLUS                  17                    =       4 X 8 OR  32