Quizzes
The Actinides
The actinides are the 15 elements on the lower row of the rare earth element blocks of the periodic table. They are all radioactive, and only four occur naturally.
Fun: (2.6)
Difficulty: (2.29)
Quiz ID: #33150
Category: Science > Chemistry Submitted By: ultimatecub
Category: Science > Chemistry Submitted By: ultimatecub
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