2 papers
physics.ed-ph2026
"Pairs of Squares" Periodic Table
Leonid A. Levin
I present a new "Pairs of Squares" rendering of the Periodic Table. It takes advantage of the number of orbitals at each Madelung energy level being a whole square. This makes the…
cs.DM2025
Notes for Miscellaneous Lectures
Leonid A. Levin
Here I share a few notes I used in various course lectures, talks, etc. Some may be just calculations that in the textbooks are more complicated, scattered, or less specific; other…