When Z = 1/α (Z ≈ 137), the motion gets to be extremely relativistic, and Z2 cancels the α2 in R; the orbit Vitality begins for being similar to rest Vitality. Sufficiently big nuclei, if they were secure, would reduce their demand by developing a sure electron in the vacuum, https://kit20763.tnpwiki.com/6136508/mobile_for_dummies