![[Picture]](../images/aglarule.gif){kind=small}
How is the truss defined?
The truss consists of several elements with following order-numbers:
1, 4, 12, 21, 39, 58, 90, 123, 173, 224, 296, 369, 467, 566, 694, 823, 985, 1148 ...
Which are the elements with predetermined breakpoints?
1, 12, 39, 90, 173, 296, 467, 694, 985, 1348 ... (Subset of the truss)
The truss divides the Periodic Table into two sections.
These two sections can be combined differently.
The truss lies within ...
... or the truss lies outside. (better because clearer)
The truss thus follows from the inert-gas algorithm E(n)
Basic: T(n)=E(n)+(int(n+1)/2)+1
Excel (DE): T(n)=E(n)+(ABRUNDEN((n+1)/2;0))+1
Excel (US): T(n)=E(n)+(ROUND((n+1)/2,0))+1
| (n) | E(n) | + (int(n+1)/2)+1 = | T(n) | PBP |
| 0 | 0 | 1 | 1 [H] | 1 |
| 1 | 2 [He] | 2 | 4 [Be] | |
| 2 | 10 [Ne] | 2 | 12 [Mg] | 12 |
| 3 | 18 [Ar] | 3 | 21 [Sc] | |
| 4 | 36 [Kr] | 3 | 39 [Y] | 39 |
| 5 | 54 [Xe] | 4 | 58 [Ce] | |
| 6 | 86 [Rn] | 4 | 90 [Th] | 90 |
| 7 | 118 [Uuo] | 5 | 123 [Ubt] | |
| 8 | 168 [Uho] | 5 | 173 [Ust] | 173 |
| 9 | 218 [Buo] | 6 | 224 [Bbq] | |
| 10 | 290 [Ben] | 6 | 296 [Beh] | 296 |
| 11 | 362 | 7 | 369 [The] | |
| 12 | 460 | 7 | 467 [Qhs] | 467 |
| 13 | 558 | 8 | 566 [Phh] | |
| 14 | 686 | 8 | 694 [Heq] | 694 |
| 15 | 814 | 9 | 823 [Obt] | |
| 16 | 976 | 9 | 985 [Eop] | 985 |
Outblocking of Elements C(n) [Truss is the essential part here]
Higgledy-piggledy [ Ce-Th-Ubb] [ Ubt-Ust]
Temporary end of the description of truss elements
