| Chromium |
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| Atomic Number - | 24 | Melting Point (°C,°F) - | 1907 °C, 3465 °F |
| Atomic Symbol - | Cr | Boiling Point (°C,°F) - | 2671 °C, 4840 °F |
| Atomic Mass - | 52.00 | Electron Configuration - | [Ar] 3d5 4s1 |
| Group - | 6 | Electrons Per Shell - | 2, 8, 13, 1 |
| Period - | 4 | Protons - | 24 |
| Series - | Transition Metals | Neutrons - | 28 |
| Block - | f-block | | |
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Element Description - Chromium is a chemical element in the periodic table that has the symbol Cr and atomic number 24. |
Element Characteristics - Chromium is a steel-gray, lustrous, hard metal that takes a high polish, and melts with difficulty.
The most common oxidation states of chromium are +2, +3, and +6, with +3 being the most stable. +4 and +5 are rare. Chromium compounds of oxidation state 6 are powerful oxidants.
Chromium(0) is unstable in oxygen, immediately producing a thin oxide layer that is impermeable to oxygen and protects the metal below. |
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