In
Indium (Atomic Number 49)
Category: post-transition | Period 5, Group 13 | Block: p
Soft post-transition metal key to transparent conductive touchscreen films.
Atomic & Physical Constants
- Standard Atomic Weight:
- 114.8181 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 18, 18, 3
- Electronegativity (Pauling):
- 1.78
- Melting Point:
- 429.7485 K
- Boiling Point:
- 2345 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Indium Tin Oxide (ITO) touchscreens, low-temp solders
Discovery History
Discovered by Ferdinand Reich (1863).
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