hafnium
Hf
72
atomic number
72
chemical element of
chemistry
random
Macintosh SE/30
symbol
Hf
tags
chemical element
Wikidata
https://www.wikidata.org/wiki/Q1119
Wikimedia
https://commons.wikimedia.org/wiki/Category:Hafnium
Wikipedia
https://en.wikipedia.org/wiki/Hafnium
➡️
tantalum
Ta
73
⬅️
lutetium
Lu
71