atomic number

Second Simulation of radioactive decay and half life

Radioactive Decay Simulation — Description Half-Life Simulation 64 radioactive atoms are displayed in a grid. Each atom glows and shakes while unstable. When it decays, it flashes and dims. The live graph on the right plots actual decay data against the theoretical curve N(t) = N₀ · e^(−λt) in real time. Choose from five AQA […]

Second Simulation of radioactive decay and half life Read More »

Simulation of radioactive decay

Radioactive Decay Simulation — Description The simulation shows 48 unstable nuclei arranged in a grid, each decaying randomly over time following the exponential decay law N(t) = N₀ · e^(−λt). Students can select five AQA-relevant isotopes from the dropdown — Carbon-14, Polonium-210, Radium-226, Technetium-99m, and Sodium-22 — each with its correct decay type (α, β⁻,

Simulation of radioactive decay Read More »

Simulation of chadwick’s discovery of neutron experiment

Simulation of Chadwick’s Neutron discovery Suggested class activity — “What does the data tell us?” Let me check our past conversations for any relevant context first. Chadwick’s Neutron Discovery — Simulation Description The simulation recreates James Chadwick’s 1932 experiment that proved the existence of the neutron. It runs left to right across three stages: A

Simulation of chadwick’s discovery of neutron experiment Read More »

Simulation of alpha particles scattering – Geiger–Marsden gold foil experiment

Simulation of Alpha particle scattering experiment What the simulation shows An interactive recreation of the 1909 Geiger–Marsden gold foil experiment. Alpha particles are fired from the left toward a gold atom. A dashed circle shows the atom boundary and electron cloud, with a small dense gold nucleus at the centre marked with a positive charge.

Simulation of alpha particles scattering – Geiger–Marsden gold foil experiment Read More »

Simulation of Atom models – Plum pudding model, Nuclear model and Bohr’s model

Simulation of the Atom models – Plum pudding model, Nuclear model and Bohr’s model What it does Three tabs, each showing a different historic model of the atom on an interactive canvas: Plum Pudding (Thomson, 1904) — a glowing purple positive-charge cloud with 8 electrons drifting and wobbling inside it. Purely animated, no interaction needed

Simulation of Atom models – Plum pudding model, Nuclear model and Bohr’s model Read More »