Wartościowości pierwiastkó
| Wodór | h 1 |
| Hel | he 0 |
| lit | li 1 |
| beryl | be 2 |
| bor | b 3 |
| węgiel | c2 4 |
| azot | n 1235 |
| tlen | o 2 |
| fluor | f1 |
| neon | ne 0 |
| sód | na 1 |
| magnez | mg 2 |
| glin | al 3 |
| krzem | si 4 |
| fosfor | p 35 |
| siarka | s 246 |
| chlor | cl 1357 |
| argon | ar0 |
| potas | k1 |
| wapń | ca2 |
| skand | sc 23 |
| wanad | v345 |
| chrom | cr 234 |
| mangan | mn 23467 |
| żelazo | fe23 |
| kobalt | co 23 |
| nikiel | ni23 |
| miedz | cu 12 |
| cynk | zn2 |
| gal | ga3 |
| german | ge24 |
| arsen | as 35 |
| selen | se 46 |
| brom | br 1456 |
| kryptom | kr0 |
| rubid | rb1 |
| sront | sr2 |
| niob | nb 45 |
| molibden | mo236 |
| pallad | pd24 |
| srebro | ag 12 |
| kadm | cd2 |
| cyna | sn 24 |
| antymon | sb35 |
| tellur | te 246 |
| jod | I1457 |
| rtęc | hg 12 |
| ołow | pb 24 |
| cez | cs 1 |
| bar | ba 2 |
| platyna | pt 2467 |
| złoto | au 123 |
| bizmut | bi 35 |
| astat | at 1256 |