Strange New Form of Gold Exists as a Sheet That's Just One Atom Thick

<img width="128" height="52" src="https://www.sciencealert.com/images/2024/04/gold-foil.jpg" alt=""/>
They call it goldene.

https://www.sciencealert.com/strange-new-form-of-gold-exists-as-a-sheet-thats-just-one-atom-thick