draw and explain energy level diagram for he ne laser. what is the role of helium atoms

Alright, so imagine you have a special kind of flashlight called a He-Ne laser. This flashlight doesn’t use regular batteries, instead it uses helium (He) and neon (Ne) atoms to create a really strong beam of light. Now, the energy level diagram is like a map that shows how much energy the helium and neon atoms have when they’re inside the laser. The helium atoms play a very important role in this process. They get excited (like when you’re really happy and full of energy) and then they pass on their energy to the neon atoms. This makes the neon atoms also get excited and give off light. Here’s a fun fact: Helium is a noble gas, which means it doesn’t like to react with other elements. But when it’s inside a He-Ne laser, it actually helps create the cool laser beam that we see. So, think of the helium atoms as the superheroes that power up the neon atoms to create the bright light beam in a He-Ne laser. Just like how a big brother helps a little sister reach the cookie jar on the top shelf!