Chromium Oxidation States

Colorful chromium is captivating! Science sleuths solve a series of puzzles using an interactive resource. Individuals relate the oxidation states of chromium to the colors produced when the compound is placed in acidic or basic solutions.

3 Views 2 Downloads NGSS: Adaptable
Instructional Ideas

  • Demonstrate chromium's oxidation states, then have learners do the gridlock puzzles
  • Use the resource to examine the multiple oxidation states of the transition metals
Classroom Considerations

  • Pupils should be familiar with how to determine oxidation states prior to beginning the activity
Pros

  • Teachers can print the puzzles or have students work them online
  • The interactive presents a creative method for examining oxidation states
Cons

  • None
NGSS