Janet's left-step periodic table, illustration. This periodic table was devised by the French engineer Charles Janet in 1928. It groups the elements by the orbits their electrons occupy. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / VISUAL CAPITALIST |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |