Particle Creation Stage Cleared X You have successfully built up the various particles in this activity from their subatomic components. Next you will place them on the timeline in the position that c...Particle Creation Stage Cleared X You have successfully built up the various particles in this activity from their subatomic components. Next you will place them on the timeline in the position that corresponds to their introduction into the universe. OK Proton Plasma Proton Neutron Deuterium Tritium Helium-3 Helium-4 Timeline Not to scale 0 seconds Universe Begins 1 microsecond Quark Confinement 4 minutes Nucleosynthesis Ends 1 seconds Nucleosynthesis Begins Particle List
