Input interpretation
f-block elements | period
Summary
6 | 7
Categorized list
6 | cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, neodymium, praseodymium, promethium, samarium, terbium, thulium, ytterbium 7 | actinium, americium, berkelium, californium, curium, einsteinium, fermium, mendelevium, neptunium, nobelium, plutonium, protactinium, thorium, uranium