Silver (symbol Ag, atomic number 47) is the best electrical conductor of all metals, long used in coinage and photography. It is classified as a transition metal and sits in group 11, period 5 of the periodic table.
Overview
Silver is the chemical element with atomic number 47 and the symbol Ag. With a standard atomic weight of 107.87, it is a transition metal. In the periodic table it occupies group 11 and period 5, and under standard conditions it is normally a solid. Silver is the best electrical conductor of all metals, long used in coinage and photography.
Atomic structure
An atom of Silver has 47 protons in its nucleus and, when neutral, 47 electrons arranged in the configuration [Kr] 4d10 5s1. Its standard atomic weight of 107.87 reflects the natural mix of its stable isotopes.
Discovery and place in the table
Silver has been known since antiquity. It follows Palladium (Pd) and precedes Cadmium (Cd) in order of atomic number.
| Atomic number | 47 |
|---|---|
| Symbol | Ag |
| Atomic mass | 107.87 |
| Category | Transition metal |
| Group | 11 |
| Period | 5 |
| Electron configuration | [Kr] 4d10 5s1 |
| Phase at STP | Solid |
| Discovered | Antiquity |