You might mean a sheet of gold that is one atom thick, which would be visible and this would be true for most materials, but some are hard or impossible to produce.
I’m trying to remember exactly but I think it was that if you can isolate a gold atom, you can bounce a laser on it and see the reflection with your eyes. Something about the reflection of gold and that being one of its interesting properties. Could be just my imagination though
You might mean a sheet of gold that is one atom thick, which would be visible and this would be true for most materials, but some are hard or impossible to produce.
I’m trying to remember exactly but I think it was that if you can isolate a gold atom, you can bounce a laser on it and see the reflection with your eyes. Something about the reflection of gold and that being one of its interesting properties. Could be just my imagination though