| Answer | Crossword Clue |
|---|---|
| SCH | K-8 facility: Abbr. |
| ELEM | K through 8 |
| PTA | K-8 org. |
| niobiums | steel-gray metallic element resembling tantalum in its chemical properties; becomes a superconductor below 9 K; used chiefly in alloy steels. Symbol: Nb; at. no.: 41; at. wt.: 92.906; sp. gr.: 8.4 at 20┬░C |
| niobium | steel-gray metallic element resembling tantalum in its chemical properties; becomes a superconductor below 9 K; used chiefly in alloy steels. Symbol: Nb; at. no.: 41; at. wt.: 92.906; sp. gr.: 8.4 at 20┬░C |
