atomic number 73
noun
- 1
a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
Also useful for “atomic number 73”:Crossword— Multi-word entries show up in clues
a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
Also useful for “atomic number 73”:Crossword— Multi-word entries show up in clues