1. (a hard grey lustrous metallic element that is highly resistant to corrosion
occurs in niobite and fergusonite and tantalite)
tantal, Ta
synonim: tantalum
synonim: atomic number 73

2. (a hard grey lustrous metallic element that is highly resistant to corrosion
occurs in niobite and fergusonite and tantalite)
: : synonim: tantalum
synonim: atomic number 73