Named for Enrico Fermi. First detected in 1952 in fallout from the 'Ivy Mike' hydrogen bomb test. The Chinese character 镄 was coined to fit: metal radical 钅 + phonetic 费 (fèi).
memory
镄 = 钅 (metal radical, signals 'this is an element') + 费 (fèi, 'cost' — purely phonetic). One of dozens of element characters built this way (钠 sodium, 铂 platinum, 铀 uranium).
