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Hf
Noun
a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
synonym
atomic number 72
hafnium
hypernym
metal
metallic element
Hf vs atomic number 72
Hf vs hafnium
Hf vs metal
Hf vs metallic element
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