Quantum Mechanical Atom
Students browse elements and explore three-dimensional electron probability clouds, changing the quantum numbers n, l and mₗ to see how orbital shapes and orientations…
Home › Interactives › Physics › Bohr Emission Spectra
Physics · Quantum & Atomic Physics
Students excite an electron to a chosen shell and let it relax, watching the emitted photon's wavelength, energy and colour appear together on an energy-level diagram and a spectrum strip. Linking each transition to a single spectral line helps students explain why elements produce line spectra rather than continuous colour. The full interactive is available to licensed Education Universe users.
Ask students to predict which transition will give the shortest wavelength before testing it, then discuss where the Bohr model is a simplification.
Start a free 30-day trial with class codes and progress tracking, or talk to us about your school's licence.
Students browse elements and explore three-dimensional electron probability clouds, changing the quantum numbers n, l and mₗ to see how orbital shapes and orientations…
Students compare representative emission-line spectra for multiple elements and investigate how discrete atomic energy transitions produce characteristic spectral…
Mixed questions covering acceleration, deceleration, initial and final velocity, elapsed time and the conceptual difference between speed and acceleration, with worked…
Students explore initial velocity, final velocity, elapsed time and the resulting acceleration through animated motion paired with a velocity-time graph, comparing…
A guided investigation using repeated trials to measure the acceleration of a car released from rest on a ramp, comparing the results for different slopes. The full…
Students build displacement from the signed area under a velocity–time graph and total distance from the unsigned area, decomposing the shape into rectangles, triangles…
Bohr Emission Spectra is one of the licensed interactives in The Education Universe. This page describes it; teachers use it in lessons and classes with a licence or the free trial.