2. How and when did particles form?
The movement of the particles inside atoms are similar to the solar system where the planets orbit the sun. The planets were formed right after the “Big Bang” when our universe gave off pure energy. According to research and scientists, atoms/particles were formed only a few seconds after planet Earth formed! So, atoms don’t form constantly. A surprising fact is protons that were made during the “Big Bang,” will outlast our universe and planet Earth.