00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| to remove impurities from a gas by chemical means, as sulfur dioxide from smokestack gas or carbon dioxide from exhaled air in life-support packs |
| selecting for combination or action; tending to combine with certain substances in preference to others, such as elective attraction |
tantalum tan·ta·lum (tān'tə-ləm)
n.
Symbol Ta
A hard heavy metallic element that is exceptionally resistant to chemical attack below 150°C and is used to make electronic components and surgical instruments. Atomic number 73; atomic weight 180.948; melting point 3,017°C; boiling point 5,458°C; specific gravity 16.7; valence 2, 3, 4, 5.
| tantalum (tān'tə-ləm) Pronunciation Key
Symbol Ta A hard, heavy, gray metallic element that is highly resistant to corrosion at low temperatures. It is used to make light-bulb filaments, surgical instruments, and glass for camera lenses. Atomic number 73; atomic weight 180.948; melting point 2,996°C; boiling point 5,425°C; specific gravity 16.6; valence 2, 3, 4, 5. See Periodic Table. |