The other day on Facebook, someone asked a reasonable question for a beginner. "How do you finger all the notes on the trumpet?"
I made a quick video, ten minutes, where I play each note starting from F# and going up to double high G. Feel free to follow along and learn the fingerings or show it to someone who is trying to learn the fingerings on the trumpet or trying to learn the chromatic scale.
In other words, this video is the chromatic scale in super slow motion.
Learning the fingerings to the notes is just the first step. You have to memorize them and learn them until they are second nature, and your fingers just naturally play the notes. That's what practicing is for!