| UUK | 3. Gruppe: 3. Hauptgruppe (Bor; Aluminium; Scandium; Yttrium; Lanthanoide (hier Seltene Erden) (Lanthan, Cer, Praseodym, Neodym, Promethium, Samarium, Europium, Cadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium); Actinoide (hier Radioaktive Elemente) (Actinium, Thorium, Protactinium, Uran, Transurane, Neptunium, Plutonium, Amerivium, Curium, Berkelium, Californium, Einsteinium, Fermium, Mendelevium, Nobelium, Lawrencium)). 3. Nebengruppe (Gallium; Indium; Thallium) |
