The Chicago Atomics name may have originated from the first nuclear chain reaction carried out on the campus of the University of Chicago. Perhaps the magnitude of the event caught up with the club, as the name quickly changed after their first game...and it was a doozy.
The Atomics dropped a bomb on the Boston Celtics in the Garden in the first game the Celtics ever played. They were both part of the newly created Basketball Association of America, that also gave birth to the New York Knickerbockers.
After this first game the Chicago Atomics became the Chicago Stags and spent the next 4 years as a mediocre Chicago team...but man that first game was sweet.