49
In
Indium
Post-transition metal period 5 group 13 p-block discovered: 1863
As a chemical element
Properties of the atom — they do not depend on what substance it is part of.
- Atomic number
- 49
- Atomic mass
- 114.818 a.m.u.
- Electron configuration
- [Kr]5s2 4d10 5p1
- Electronegativity
- 1.78 on the Pauling scale
- Atomic radius
- 193 pm
- Ionization energy
- 5.786 eV
- Electron affinity
- 0.3 eV
- Oxidation states
- +3
As a simple substance
Properties of the substance these atoms form under ordinary conditions.
- State at 25 °C
- Solid
- Melting point
- 429.75 K (156,6 °C)
- Boiling point
- 2345 K (2 071,85 °C)
- Density
- 7.31 g/cm³