The two rows often shown separately below the main table contain the f-block elements frequently split into which pair of series names?
Q1. The two rows often shown separately below the main table contain the f-block elements frequently split into which pair of series names?
Answer: Lanthanide series and actinide series in standard charts
Explanation: The f-block elements are split into the lanthanide series (elements 57–71, period 6) and the actinide series (elements 89–103, period 7), which are displayed separately below the main periodic table.