📚 Practice Mode

Classification of Elements in the Periodic Table

Learn at your own pace with hints and detailed explanations

1 / 16
Multiple Choice

An element has configuration 2, 8, 1. It belongs to

  1. 1st group and 3rd period
  2. 3rd group and 1st period
  3. 1st group and 8th period
  4. 17th group and 3rd period
Change Mode