Element 47
Silver (Ag)
Silver (Ag) is element 47 of the periodic table, a transition metal in period 5, group 11 (d-block) with an atomic mass of 107.87 and is a solid at standard conditions.
At a glance
- Atomic number
- 47
- Symbol
- Ag
- Atomic mass
- 107.87 u
- Category
- Transition metals
- Period
- 5
- Group
- 11
- Block
- d-block
- Phase at STP
- solid
Electron structure
- Electron configuration
- 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1
- Shorthand configuration
- [Kr] 4d10 5s1
- Electrons per shell
- 2, 8, 18, 18, 1
- Oxidation states
- -2, -1, +1, +2, +3, +4
Physical properties
- Melting point
- 1234.93 K
- Boiling point
- 2435 K
- Density
- 10.501 g/cm3
- Phase
- solid
Atomic properties
- Electronegativity (Pauling)
- 1.93
- Atomic radius
- 165 pm
- Covalent radius
- 145 pm
- Van der Waals radius
- 172 pm
- First ionization energy
- 731 kJ/mol
- Electron affinity
- 126 kJ/mol
Notable isotopes
| Isotope | Mass | Abundance | Stability |
|---|---|---|---|
| Ag-107 | 106.90509 | 51.84% | Stable |
Common uses
- Jewelry
- Electronics
- Photography
- Medicine
Discovery
- Discovered by
- Known since antiquity
- Country
- Unknown