Description
🔍 Explore
Build chemical elements from scratch using protons, neutrons, and electrons. Add subatomic particles to see how mass number, electric charge, element identity, and nuclear stability change.
🎮 Try It
• Drag protons into the center and watch the element name and symbol change in the atom readout.
• Add neutrons to the nucleus and check Stable / Unstable to see whether the isotope holds together.
• Place electrons in outer shells to balance the protons and watch the Net Charge indicator show Neutral Atom.
🎯 Your Mission
Build a stable, neutral atom of Carbon by placing the exact correct number of protons, neutrons, and electrons.
🌍 Real-World Connection
All matter in the universe, from the gold in jewellery to the oxygen we breathe, is made of atoms defined entirely by the number of protons in their nucleus.
