Question
Write condensed electron configuration and partial orbital diagram for Fe^2+
Answers
Answered by
GPT-4o mini
The electron configuration for neutral iron (Fe, atomic number 26) is:
\[ \text{Fe: } [\text{Ar}] \, 4s^2 \, 3d^6 \]
When iron loses two electrons to form the Fe²⁺ ion, the electrons are lost from the 4s orbital first. Therefore, the electron configuration for Fe²⁺ becomes:
\[ \text{Fe}^{2+}: [\text{Ar}] \, 3d^6 \]
### Partial Orbital Diagram for Fe²⁺
The partial orbital diagram for the 3d subshell of Fe²⁺ is shown below:
```
3d: ↑↓ ↑↓ ↑ ↑ ↑
```
In this diagram:
- The 3d subshell has six electrons, with two paired in the first orbital and one electron in each of the three remaining orbitals, following Hund's rule.
\[ \text{Fe: } [\text{Ar}] \, 4s^2 \, 3d^6 \]
When iron loses two electrons to form the Fe²⁺ ion, the electrons are lost from the 4s orbital first. Therefore, the electron configuration for Fe²⁺ becomes:
\[ \text{Fe}^{2+}: [\text{Ar}] \, 3d^6 \]
### Partial Orbital Diagram for Fe²⁺
The partial orbital diagram for the 3d subshell of Fe²⁺ is shown below:
```
3d: ↑↓ ↑↓ ↑ ↑ ↑
```
In this diagram:
- The 3d subshell has six electrons, with two paired in the first orbital and one electron in each of the three remaining orbitals, following Hund's rule.