Which of the following atomic elements does not belong in the following list?

this may not be what you are looking for but Carbon is an exception in being the only one that does not have a full shell of 8 in its electron structure

It goes 2-4
and the others go 2-8-something-...

 

Silcon is semi-metallic, the rest are non-metallic.

 

Phosphorus

The others can be found in a pure state, but phosphorus is too reactive and has be be separated?

 

They all contain the letter 'n' 'cept P.?

 

The only other thig I can think of is that they were all named by they're discoverers except Carbon which had been known since ancient times?

 

neither is silicon tho'

 

for whatever reason, carbon
Greg just asked which element doesnt belong, not why

 

I will hazard a guess. (just a guess...don't kill me ):

Phosphorus

Because the word is derived from two words ( phos (light) and phoros (bearer))
instead of from one word like the others.

He said it was language-based....

 

neon - it is the only one that isn't next to another element in the list

 

Holy moly, i think i got it:

Iodine is the one that doesn't fit

Reason:

Its the only one you can spell with the atomic symbols


C-Ar-B-O-N
Ne-O-N
Si-Li-C-O-N
P-H-O-S-P-H-O-Ru-S
Xe-N-O-N

Dude, i got too much time on my hands!