047Transition metal · Group 11 · Period 5
Silver
Silver (Ag) is element 47, a transition metal in the d-block — group 11, period 5. It is a solid at room temperature with 5 electron shells (2, 8, 18, 18, 1) and an atomic mass of 107.86822 u.
- Atomic mass
- 107.9 u
- Phase · STP
- solid
- Melting
- 1235 K · 962 °C
- Boiling
- 2435 K · 2162 °C
- Electronegativity
- 1.93
- Density
- 10.49 g/cm³
Photograph — Jurii, CC BY 3.0 <https://creativecommons.org/licenses/by/3.0>, via Wikimedia Commons, source: http://images-of-elements.com/silver.php
Identity
- Atomic number
- 47
- Standard atomic weight
- 107.9 u
- Category
- Transition metal
- Group
- 11
- Period
- 5
- Block
- d-block
- Oxidation states
- +1
Physical properties
- Melting point
- 1235 K · 962 °C
- Boiling point
- 2435 K · 2162 °C
- Density
- 10.49 g/cm³
- Molar heat capacity
- 25.35 J/(mol·K)
- Atomic radius
- 172 pm
- Electron affinity
- 125.862 kJ/mol
Atomic structure
47protons
61neutrons
47electrons
1valence e⁻
- Noble-gas notation
- [Kr] 4d10 5s1
- Full configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10
- Electrons per shell
- 2, 8, 18, 18, 1
Periodic trends
Where Silver ranks across all 118 elements.
Ionization energies
Energy to remove each successive electron (kJ/mol).
7311
2.1k2
3.4k3
Successive ionization energies (kJ/mol, log scale).
Discovery
- Discovered
- Ancient
- Discovered by
- unknown, before 5000 BC
- Named by
- —
- Appearance
- lustrous white metal