One tenth of a mole (20.7g) of lead. A mole is the measurement of a substance that has the same number of atoms as 12 grams of pure carbon-12 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Chillmaid, Martyn F. |
Taille de l’image : | 3448 px × 5759 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |