हिन्दी में पढ़ेंHome › Elements › Indium
Indium (In)
Atomic number 49 · post
| Atomic number | 49 |
|---|---|
| Atomic mass | 114.818 u |
| Molar mass | 114.818 g/mol |
| Category | post |
| Group / period / block | 13 / 5 / p |
| Electron configuration | [Kr] 4d10 5s2 5p |
| Electrons per shell | 2, 8, 18, 18, 3 |
| Electronegativity (Pauling) | 1.78 |
| Atomic radius | 155.0 pm |
| Density | 7.31 g/cm³ |
| First ionisation energy | 5.7864 eV |
| Melting point | 429.75 K (156.60 °C) |
| Boiling point | 2300.15 K (2027.00 °C) |
| Common oxidation states | +3 |
| Abundance in Earth's crust | 0.25 ppm |
Uses
Touch screens (ITO), solders
Discovery
1863, Ferdinand Reich, T. Richter