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Who discovered hafnium while working at Niels Bohr’s institute?
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The Dutch physicist Dirk Coster and the Hungarian physical chemist Georg Charles von Hevesy discovered the element hafnium in 1923 while working at Niels Bohr’s institute in Copenhagen.123
They identified the element by analyzing the X-ray spectra of zirconium ores, a discovery that experimentally confirmed Bohr’s theoretical predictions regarding the periodic table.123