L. Daniel Votino

The 44 Ladder: chemical-family recurrence in a mass-number arrangement of stable nuclides

The periodic table has a mass scale it does not print. A middle row costs about 44 mass units: it spans 18 protons, each adding roughly two and a half units along the valley of stability. The interval was noticed before it was explained. Arranging the 253 nuclides marked stable i...