Valence Shells. Valence is what gives a chemical its structure,most of the symmetry that we see in crystals comes from this fundamental structure | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gonzalez Perez, Raul |
Taille de l’image : | 4000 px × 4000 px |
Model Release : | Non requis |
Restrictions : |
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