There are many exceptions to this rule, however, including iron being put in the same group as sulfur and oxygen - explaining why it was disregarded by other scientists (1 gen 1864 anni – 23 ore 59 min, 31 dic 1864 anni)
Aggiunto al nastro di tempo:
Data:
1 gen 1864 anni
23 ore 59 min, 31 dic 1864 anni
~ 12 months