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英英字典: atomic_number_72

atomic number 72   (TTS Sound)



Overview of noun atomic_number_72

The noun atomic number 72 has 1 sense


  • hafnium, Hf, atomic number 72 -- (a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons)

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