The Three E's - Exciting Energetic Electrons
High schoolers perform flame tests on salts and record the electron configurations for various cations. They analyze and record the results using spectroscopes.
9th - 12th Science 7 Views 34 Downloads
How Electrons Determine Chemical Behaviors
Lead the class on an investigation as they play detective and locate patterns in the electron arrangement of atoms. During the seventh lesson, they assign valence numbers to elements, organize the periodic table in the correct sequence,...
7th - 12th Science
2000 U.S. National Chemistry Olympiad National Exam - Part I
The National Chemistry Olympiad exams are comprehensive tests covering an entire year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
9th - 12th Science