This New Element is Lighter than Hydrogen. What!!

Visit to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription. When we first learn about atoms, we learn that the simplest has one electron buzzing around one proton, aka hydrogen. But it turns out there's an atom that's even simpler than this. It's called muonium, and it's an atom that's partially made of antimatter! Hosted by: Hank Green (he/him) Muonium: The Atom That Breaks All The Rules ---------- Support SciShow by becoming a patron on Patreon: ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Alisa Sherbow, Dr. Melvin Sanicas, Harrison Mills, Adam Brainard, Chris Peters, charles george, Piya Shedden, Alex Hackman, Christopher R, Boucher, Jeffrey Mckishen, Ash, Silas Emrys, Eric Jensen, Kevin Bealer, Jason A Saslow, Tom Mosner, Tomás Lagos G