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.
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.
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 for any formula containing Ag.
Position in the periodic table
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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 (CC BY-SA 3.0); standard atomic weights from IUPAC (abridged). Values in brackets are the mass number of the longest-lived isotope.