Indium Electron Configuration
Orbital diagram
- Valence electrons
- 3
- Unpaired electrons
- 1
- Block
- p-block
- Magnetism (atom)
- paramagnetic
Electrons per shell
| K (n = 1) | 2 |
|---|---|
| L (n = 2) | 8 |
| M (n = 3) | 18 |
| N (n = 4) | 18 |
| O (n = 5) | 3 |
Indium ion configurations
| Ion | Electrons | Configuration |
|---|---|---|
| In3+ | 46 | [Kr] 4d10 |
How to write it
Place 49 electrons into subshells in the Aufbau order (1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p), filling s with 2, p with 6, d with 10 and f with 14. Indium sits in period 5, group 13, in the p-block, so its last electron enters a p subshell. Replacing the inner electrons with the previous noble gas gives the shorthand [Kr] 4d10 5s2 5p1.
Try indium and its ions in the calculator, or see the full indium data sheet.
Indium electron configuration FAQ
What is the electron configuration of indium?
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p¹. Shorthand (noble gas) notation: [Kr] 4d¹⁰ 5s² 5p¹.
What is the noble gas configuration of indium?
[Kr] 4d¹⁰ 5s² 5p¹. The bracket stands for the Kr core electrons.
How many valence electrons does indium have?
3 (outer shell (n = 5)).
How many unpaired electrons does indium have?
1 in the ground state, following Hund’s rule. An atom with unpaired electrons is paramagnetic.
What is the electron configuration of In3+?
[Kr] 4d¹⁰ (46 electrons).