Atomic Number 72 — synonyms, definition

1. atomic number 72 (Noun)

2 synonyms
Hf hafnium
1 definition

atomic number 72 (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.

2 types of
metal metallic element