Periodic Table of the Elements: Arsenic
Related article: Periodic Table of the Elements (table)Periodic Table of the Elements
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| Atomic Number: | 33 |
| Atomic Symbol: | As |
| Arsenicarsenic , a semimetallic chemical element; symbol As; at. no. 33; at. wt. 74.92160; m.p. 817°C; (at 28 atmospheres pressure); sublimation point 613°C;; sp. gr. (stable form) 5.73; valence −3, 0, +3, or +5. ..... Click the link for more information. | |
| Atomic Weight: | 74.92160 |
| Electron Configuration: | 2 · 8 · 18 · 5 |