Only a Few Grams of This Element Exist—and Scientists Have Used It to Break the Rules of the Periodic Table
More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the transuranium element berkelium. According to a new study, the electronic signature of ...
C&EN10mon
Periodic Table Educational Resources for Ages 12-14
Lesson Plans: The Periodic Table and Bonding Download inquiry-based lesson plans ... Guidelines and Recommendations for Teaching Middle & High School Chemistry Learn to navigate the core concepts of ...