Periodic table (f-block): The actinide series comprises elements with which atomic-number range? Identify the standard range used in chemistry for actinides. Choose the correct range.
General Knowledge
General Science
Difficulty: Easy
Choose an option
Answer
Correct Answer: 89 to 103
Explanation
Given data
- Series: Actinides (5f-block).
Concept/ApproachActinides start at actinium (Z = 89) and run through lawrencium (Z = 103), covering the 5f orbital filling sequence.
Final Answer89 to 103