Chemistry - Atomic Structure - Isotopes - Isotope Builder

An interactive atom builder focused on isotopes. Lock the proton count (this determines the element) and let the child adjust ONLY the neutron count. Start with Carbon (6 protons locked). Neutron slider: 5-8. At 6 neutrons: 'Carbon-12 (stable, most common, 98.9% of all carbon)'. At 7 neutrons: 'Carb