Quote:
Originally posted by LennonCook:
The only complication is the electron shells: just remember the pattern 2,8,8,16 ; that should be as far as you need go [img]smile.gif[/img]
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And just what element fills N to 16 before filling M to 18?
Actualy, IIRC, N can hold up to 32, but thats getting may beyond anything I officialy studied.