the.com/hafnium
the element that hid inside zirconium for a century before anyone caught it
melting pointliquid only above 2233 degrees Celsius
chip secretreplaced silicon dioxide in modern transistors
nuclear appetiteswallows neutrons, so it lines reactor control rods
named forCopenhagen, where it was finally discovered in 1923
twin troublechemically near-identical to zirconium, hellish to separate