HI. Could someone help me with the lights, camera engines quest. I am stuck on number 12. 12 is: Collecting the 1st of 5 atoms at this station will be the cause of celebration. I got to the tomorrowland monorail station by riding the monorail then jumping off but then the atom is on the other side! How do you get to that other side?

p.s. I dont mind spoilers