https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atomic-models-and-periodicity/x2613d8165d88df5e:the-bohr-model-and-atomic-spectra/a/the-bohr-model 2026-04-28T11:00:37.315336883Z Learn: The Bohr model Learn how Bohr models are used to represent atoms. article https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atomic-models-and-periodicity/x2613d8165d88df5e:the-bohr-model-and-atomic-spectra/e/understand-bohr-models 2026-06-30T16:30:41.535282189Z Understand: Bohr models Check your understanding of Bohr models in this set of free, standards-aligned practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atomic-models-and-periodicity/x2613d8165d88df5e:the-bohr-model-and-atomic-spectra/e/apply-bohr-models 2026-06-30T16:30:41.535282189Z Apply: Bohr models Apply your understanding of Bohr models in this set of free, standards-aligned practice questions. Emily Cizmas exercise https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atomic-models-and-periodicity/x2613d8165d88df5e:the-bohr-model-and-atomic-spectra/a/the-electromagnetic-spectrum 2026-06-16T04:13:16.216382129Z Learn and try: The electromagnetic spectrum Learn about electromagnetic radiation and take a tour of the electromagnetic spectrum. article https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atomic-models-and-periodicity/x2613d8165d88df5e:the-bohr-model-and-atomic-spectra/e/apply-the-electromagnetic-spectrum 2026-06-25T14:10:39.916233732Z Apply: The electromagnetic spectrum Apply your understanding of the electromagnetic spectrum in this set of free, standards-aligned practice questions. Emily Cizmas exercise