Question

Write the condensed electron configuration,full electron configuration, partial orbital diagram,and state it's inner electrons for the element Nickel.

Answer 1

Nickel (Ni) has an atomic number of 28. Here’s how to represent its electron configuration in various formats:

### Full Electron Configuration
The full electron configuration of Nickel is:
\[
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^8
\]

### Condensed Electron Configuration
Using the nearest noble gas (Argon, Ar) as a reference, the condensed electron configuration is:
\[
[Ar] 4s^2 3d^8
\]

### Partial Orbital Diagram
The partial orbital diagram for Nickel would look like this:

```
1s: ↑↓
2s: ↑↓
2p: ↑↓ ↑↓ ↑↓
3s: ↑↓
3p: ↑↓ ↑↓ ↑↓
4s: ↑↓
3d: ↑↓ ↑↓ ↑↓ ↑
```
(Note: In the 3d subshell, one of the orbitals has only one electron initially placed to fill before pairing occurs, following Hund’s rule.)

### Inner Electrons
The inner electrons for Nickel include all electrons in the filled shells before the outermost shell. For Nickel, the inner electrons consist of:
\[
1s^2, 2s^2, 2p^6, 3s^2, 3p^6
\]
This totals to 20 inner electrons.

### Summary
- Full Electron Configuration: \( 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^8 \)
- Condensed Electron Configuration: \( [Ar] 4s^2 3d^8 \)
- Inner Electrons: 20

This covers the requested information for Nickel (Ni).