http://lbry.pjsfkvpxlinjamtawaksbnnaqs2fc2mtvmozrzckxh7f3kis6yea25ad.onion/@Metatronyt:5/the-secrets-of-liquid-tin-in-ancient:0
Tin is the 49th-most abundant element on Earth and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table, due to its magic number of protons. It has two main allotropes: at room temperature, the stable allotrope is β-tin, a silvery-white, malleable metal; at low temperatures it is less dense grey α-tin, which has the diamond cubic structure.