Cadmium vs Indium
Side-by-side comparison of Cadmium (Cd, element 48) and Indium (In, element 49) by atomic structure and physical properties.
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| Atomic number | 48 | 49 |
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| Symbol | Cd | In |
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| Name | Cadmium | Indium |
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| Category | transition-metal | post-transition-metal |
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| Standard Atomic Weight | 112.414 u | 114.818 u |
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| Period | 5 | 5 |
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| Group | 12 | 13 |
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| Block | d | p |
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| Phase at STP | Solid | Solid |
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| Electron configuration | [Kr]4d105s2 | [Kr]4d105s25p1 |
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| Oxidation states | [-2, 1, 2] | [-5, -2, -1, 0, 1, 2, 3] |
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| Electronegativity (Pauling) | 1.69 | 1.78 |
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| Electron affinity | -0.7 eV | 0.38392 eV |
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| Density | 8690 kg/m³ | 7310 kg/m³ |
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| Melting point | 321.07 °C | 156.6 °C |
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| Boiling point | 766.85 °C | 2071.85 °C |
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| Discovery year | 1817 | 1863 |
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Key Differences
| Cd Cadmium | In Indium |
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| Standard Atomic Weight | 112.414 u ↓ lower | 114.818 u ↑ higher |
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| Density | 8690 kg/m³ ↑ higher | 7310 kg/m³ ↓ lower |
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| Melting point | 321.07 °C ↑ higher | 156.6 °C ↓ lower |
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| Boiling point | 766.85 °C ↓ lower | 2071.85 °C ↑ higher |
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| Electronegativity (Pauling) | 1.69 ↓ lower | 1.78 ↑ higher |
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| Electron affinity | -0.7 eV ↓ lower | 0.38392 eV ↑ higher |
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| Group | 12 | 13 |
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| Block | d | p |
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| Category | transition-metal | post-transition-metal |
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| Electron configuration | [Kr]4d105s2 | [Kr]4d105s25p1 |
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| Discovery year | 1817 | 1863 |
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