Atomic Theory & Radioactivity
Investigate how atomic models changed in response to experimental evidence, compare isotopes, model alpha, beta and gamma decay, and explore radioactive half-life using…
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Chemistry · Atoms & the Periodic Table
Explore how atomic structure, electron shells, groups and periods explain patterns in the periodic table and help predict the properties and reactivity of metals, non-metals, halogens and noble gases.
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Investigate how atomic models changed in response to experimental evidence, compare isotopes, model alpha, beta and gamma decay, and explore radioactive half-life using…
A randomised challenge testing periodic table position, chemical families, valence electrons, noble-gas stability and reactivity trend predictions.
A guided investigation where students connect groups, periods and valence electrons to chemical families, noble-gas stability and reactivity trends in alkali metals and…
A guided investigation where students connect protons, neutrons and isotopes to the neutron-to-proton balance, predicting decay type and interpreting half-life.
A guided Year 9 investigation where students read the pH scale, use indicators, connect acids and bases to H⁺ and OH⁻ particles, and model neutralisation as salt and…
A randomised Year 9 challenge where students use particle models and equations to identify reactants and products, compare atom counts, and justify why atoms are…
Periodic Table & Reactivity Explorer 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.