---
title: "Palladium (Pd): Atomic Mass, Electron Configuration & Properties"
url: https://www.moldraw.com/elements/palladium.html
description: "Palladium (Pd), element 46: atomic mass 106.42, electron configuration [Kr] 4d¹⁰, group 10, period 5, d-block transition metal. Melting and boiling point, density, electronegativity and shells."
lang: en
publisher: Scidart Academy
generated: 2026-11-03
---
46Pd106.42

# Palladium (Pd) – element 46

Palladium is a chemical element with the symbol **Pd** and atomic number **46**. It is a transition metal in group 10, period 5 of the periodic table (d-block), and is a solid at room temperature.

Palladium (Pd) has atomic number 46, atomic mass 106.42 u and electron configuration [Kr] 4d10.

[Download periodic table PDF](https://www.moldraw.com/printables/periodic-table.pdf)[Open interactive periodic table](https://www.moldraw.com/tools/free-chem-tools/interactive-periodic-table.html)

## Palladium facts

| Symbol | Pd |
| --- | --- |
| Atomic number | 46 |
| Atomic mass | 106.42 u (g/mol) |
| Category | transition metal |
| Group | group 10 |
| Period | 5 |
| Block | d-block |
| Phase at 20 °C | Solid |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 4d10 |
| Noble-gas notation | [Kr] 4d10 |
| Electrons per shell | 2, 8, 18, 18 |

## Bohr model and shells

Palladium has 46 electrons in 4 shells: 2, 8, 18, 18. Full configuration and noble-gas notation are in the table; work out any element or ion with the [electron configuration calculator](https://www.moldraw.com/tools/free-chem-tools/electron-configuration-calculator.html).

## Physical and atomic properties

| Melting point | 1828.05 K (1554.9 °C) |
| --- | --- |
| Boiling point | 3236 K (2962.8 °C) |
| Density | 12.023 g/cm³ |
| Electronegativity (Pauling) | 2.2 |
| Electron affinity | 54.24 kJ/mol |
| Ionization energies | 804.4, 1870, 3177 kJ/mol (1st, 2nd, 3rd) |
| Molar heat capacity | 25.98 J/(mol·K) |
| Discovered by | William Hyde Wollaston |

Use the atomic mass in the [molar mass calculator](https://www.moldraw.com/tools/free-chem-tools/molar-mass-calculator.html) for any formula containing Pd.

## Position in the periodic table

Tap any element to open its page.

## Frequently asked questions

### What is the atomic mass of palladium?

The atomic mass of palladium is 106.42 u, so one mole of palladium atoms weighs 106.42 g.

### What is the electron configuration of palladium?

Palladium has 46 electrons: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 4d¹⁰, or [Kr] 4d¹⁰ in noble-gas notation. Electrons per shell: 2, 8, 18, 18.

### Is palladium a metal?

Yes. Palladium is a transition metal.

### Where is palladium on the periodic table?

Palladium is in group 10, period 5, in the d-block.

Data: [Periodic-Table-JSON](https://github.com/Bowserinator/Periodic-Table-JSON) (CC BY-SA 3.0); standard atomic weights from IUPAC (abridged). Values in brackets are the mass number of the longest-lived isotope.