Oh man, college physics was 35 years ago. You're making my brain hurt. Assuming visible wavelengths? And measuring in angstroms, or atomic radii? One phosphorus nucleus, for example, is as thick as 4 hydrogen nuclei (in terms of covalent radius). Crystalline structured materials probably also have an interference effect on light at such scales. I'm going to think about this while contemplating that one atom in my fingernail could be an entire universe, man. Like, wow, dude... On Thu, Jun 26, 2014 at 9:04 PM, BWFlowers <BWFlowers@comcast.net> wrote:
Just as a pure curiosity question, that I have not been able to google successfully, and for clarity I will word the same question a couple of different ways-
What ELEMENT is the most opaque? Meaning- How thin can the most opaque element be before it will allow light to penetrate it at any level?