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Build an Atom - A Simulation

Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!

Nuclear Physics Simulations

This program contains 4 simulations: Alpha Decay, Beta Decay, Nuclear Fission and               Radioactive Dating Game. Select the simulation that you wish to start.

Nuclear Fission

By hitting a U-235 nucleus with a slow neutron a state with energy above the barrier is formed, which fissions fast. The fission products are unstable, and emit additional neutrons, which can give rise to a chain reaction.

Nuclear Fusion

Nuclear fusion is a nuclear reaction. It involves forming a heavier substance from two lighter ones. The reaction itself involves nuclei – the central part of an atom. Two lighter nuclei smash together and form a larger one, as shown in the animation to the right. The mass of this larger nucleus that is formed is not just the total mass of the two lighter ones, as some mass is transformed into energy. The two nuclei cannot always simply combine, and so there are other by-products of the reaction as shown in this animation.

Towards results-oriented national Science, Technology and Innovation (ST&I) policy: Bridging stakeholders’ equitable involvement By: Dr Mahmood Ahmad Khwaja