Periodic Table of the Elements: Lutetium
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| Atomic Number: | 71 |
| Atomic Symbol: | Lu |
| Lutetiumlutetium, formerly lutecium , metallic chemical element; symbol Lu; atomic number 71; at. wt. 174.9668; m.p. about 1,663°C;; b.p. about 3,395°C;; sp. gr. 9.835 at 25°C;; valence +3. Lutetium is a silver-white metal that is relatively stable in air. ..... Click the link for more information. | |
| Atomic Weight: | 174.9668 |
| Electron Configuration: | 2 · 8 · 18 32 · 9 · 2 |