Illustration of a proton, a subatomic particle with a positive electric charge composed of two up quarks and down quark. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Schroeder, Monica |
Bildgröße: | 2499 px × 2978 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |