General

Name, Symbol, Number

silver, Ag, 47

Chemical series

transition metals

Group, Period, Block

11, 5, d

Appearance

lustrous white metal

Atomic mass

107.8682(2) g/mol

Electron configuration

[Kr] 4d10 5s1

Electrons per shell

2, 8, 18, 18, 1

Physical properties

Color

silver

Phase

solid

Density (near r.t.)

10.49 g/cm³

Liquid density at m.p.

9.320 g/cm³

Melting point

1234.93 K
(961.78 °C, 1763.2 °F)

Boiling point

2435 K
(2162 °C, 3924 °F)

Heat of fusion

11.28 kJ/mol

Heat of vaporization

258 kJ/mol

Heat capacity

(25 °C) 25.350 J/(mol·K)

Atomic properties

Crystal structure

face-centered cubic

Oxidation states

1
(amphoteric oxide)

Electronegativity

1.93 (Pauling scale)

Ionization energies

1st: 731.0 kJ/mol

2nd: 2070 kJ/mol

3rd: 3361 kJ/mol

Atomic radius

160 pm

Atomic radius (calc.)

165 pm

Covalent radius

153 pm

Van der Waals radius

172 pm

Miscellaneous

Magnetic ordering

diamagnetic

Electrical resistivity

(20 °C) 15.87 nΩ·m

Thermal conductivity

(300 K) 429 W/(m·K)

Thermal diffusivity

(300 K) 174 mm²/

Thermal expansion

(25 °C) 18.9 µm/(m·K)

Speed of sound (thin rod)

(r.t.) 2680 m/s

Young's modulus

83 GPa

Shear modulus

30 GPa

Bulk modulus

100 GPa

Poisson ratio

0.37

Mohs hardness

2.5

Vickers hardness

251 MPa

Brinell hardness

24.5 MPa

CAS registry number

7440-22-4

Notable isotopes