ଅର୍ଥ : ଏକ ଧାତବ ତତ୍ତ୍ୱ
ଉଦାହରଣ :
ହାଫ୍ନିୟମର ପରମାଣୁ ସଂଖ୍ୟା ବାସ୍ତରି
ଅନ୍ୟ ଭାଷାରେ ଅନୁବାଦ :
A grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals. Used in filaments for its ready emission of electrons.
atomic number 72, hafnium, hf