Inside a lightbulb it get excited. Inside a laser it gets so excited that when there’s a population inversion energy entering and exiting the atom can be accumulated between two mirrors and when the amount of power is just right, it can be released in the form of a powerful beam of intense light.
![My chemistry professor after explaining that helium is colorless, odorless, non-toxic, and inert [Day 67]](https://lemmy.world/pictrs/image/30fd37b1-8181-4e07-af12-1b707d9a2ed2.png){kind=link}
Inside a lightbulb it get excited. Inside a laser it gets so excited that when there’s a population inversion energy entering and exiting the atom can be accumulated between two mirrors and when the amount of power is just right, it can be released in the form of a powerful beam of intense light.