SSC CGL 2019 PYQ — Question 26

Which of the following elements is an actinide? 

Curium

What is actinide?   

• Actinide elements is a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103).
• Although several members of the group, including uranium, occur naturally, most are man-made.
• Both uranium and plutonium have been used in atomic weapons for their explosive power and currently are being employed in nuclear plants for the production of electrical power.