GAT

2-letter words 3

• ata highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
• taa hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
• aga soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography