I like how this one has a small amount of movement but not so much that it’s distracting. Maybe I would use it in the same place of similar handouts. For example, maybe this GIF would always indicate the safety concerns or procedure steps.

This one could be an animation that accompanies a test or quiz question. How many of the electrons pictured are valence electrons? How do you know? Or This animation depicts the electrons but not the nucleus. How many particles would we find in the nucleus?

This one might just be an attention-getter next to a homework assignment. Maybe I would use it to show what the follow-on work in after an experiment?