Re: Logical Chemistry Project
From: | Andrew Patterson <endipatterson@...> |
Date: | Sunday, January 9, 2005, 20:13 |
I just received this from Rene Uittenbogaard. I'm posting it here because
it means that what I said before was wrong.
Translating chemical nomenclature - I must admire your courage, as
chemical nomenclature is *very* complex indeed! :)
There are, however, a couple of problems with your periodic table.
Check out the positions of the noble gases:
Helium = 2, duodecimal 2
Neon = 10, T
Argon = 18, 16
Krypton = 36, 30
Xenon = 54, 46
Radon = 86, 72
Uuo = 118, 9T
I will count your single element hydrogen (unium) as the first period.
Your second period has the correct number of elements (8). This makes
the noble gas in the next period line up correctly.
The third period inexplicably has one element too many. Your element 11
(Uu) seems misplaced.
The fourth and fifth periods keep having this problem, which makes the
noble gases 16, 30, and 46 (Uh, Tn and Qh) appear along a diagonal.
They
do, however, assign the correct number of elements for the d-block (10
elements).
The sixth period then adds 13 elements for the f-block, which ought to
be 14. In combination with the problem introduced in the third period,
the noble gases line up correctly again.
Furthermore, why did you want to put the noble gases at the left? Noble
gases (except helium), when compared to the halogen immediately
preceding it, have the last free position in the p-orbital filled up -
which means it makes sense to put them in the p-block.
For a definition of the terms p,d,f-block, take a look at
http://www.webelements.com/webelements/scholar/ in which the s-block is
blue, the p-block is yellow, the d-block is red, and the f-block is
green.
Éylo!
René
I will change the number of elements in the rows according to your advise.
I just got it wrong, however, I like the noble gasses on the left because I
think it is more sensible to consider them as group zero than as group
eight. It means that hydrogen can be placed in a better position too.
I actually used webelements to help me do the table. I notice that they put
hydrogen above the alkali metals. Far better to just admit that it has one
less electron than a full 1s shell.
Far better, then to put it one row above exactly one column to the left.
Maybe period i (for imaginary as in imaginary numbers, or initial) is a
better term for hydrogen's period, period 1 could be helium to fluorine.
I see that you are worried about mixing s and p, I remind you that carbon
does that anyway!
Putting the noble gasses makes writing electronic configurations easier
too, as you just need to work from the noble gas on the left.
Finally, it makes the table look more symetrical.
I intend to add colours for the different blocks, but just havent got round
to it.