---
title: "Silver (Ag): Atomic Mass, Electron Configuration & Properties"
url: https://www.moldraw.com/elements/silver.html
description: "Silver (Ag), element 47: atomic mass 107.87, electron configuration [Kr] 4d¹⁰ 5s¹, group 11, period 5, d-block transition metal. Melting and boiling point, density, electronegativity and shells."
lang: en
publisher: Scidart Academy
generated: 2026-11-03
---
47Ag107.87

# Silver (Ag) – element 47

Silver is a chemical element with the symbol **Ag** and atomic number **47**. It is a transition metal in group 11, period 5 of the periodic table (d-block), and is a solid at room temperature.

Silver (Ag) has atomic number 47, atomic mass 107.87 u and electron configuration [Kr] 4d10 5s1.

[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)

## Silver facts

| Symbol | Ag |
| --- | --- |
| Atomic number | 47 |
| Atomic mass | 107.87 u (g/mol) |
| Category | transition metal |
| Group | group 11 |
| Period | 5 |
| Block | d-block |
| Phase at 20 °C | Solid |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10 |
| Noble-gas notation | [Kr] 4d10 5s1 |
| Electrons per shell | 2, 8, 18, 18, 1 |

## Bohr model and shells

Silver has 47 electrons in 5 shells: 2, 8, 18, 18, 1. 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 | 1234.93 K (961.8 °C) |
| --- | --- |
| Boiling point | 2435 K (2161.8 °C) |
| Density | 10.49 g/cm³ |
| Electronegativity (Pauling) | 1.93 |
| Electron affinity | 125.862 kJ/mol |
| Ionization energies | 731, 2070, 3361 kJ/mol (1st, 2nd, 3rd) |
| Molar heat capacity | 25.35 J/(mol·K) |
| Discovered by | unknown, before 5000 BC |

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 Ag.

## Position in the periodic table

Tap any element to open its page.

## Frequently asked questions

### What is the atomic mass of silver?

The atomic mass of silver is 107.87 u, so one mole of silver atoms weighs 107.87 g.

### What is the electron configuration of silver?

Silver has 47 electrons: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d¹⁰, or [Kr] 4d¹⁰ 5s¹ in noble-gas notation. Electrons per shell: 2, 8, 18, 18, 1.

### Is silver a metal?

Yes. Silver is a transition metal.

### Where is silver on the periodic table?

Silver is in group 11, 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.