Element Silver
It is a metallic element with atomic symbol Ag, atomic number 47, and atomic weight 107.8682.
Silver is a naturally occurring element.
It is found in the environment combined with other elements such as sulfide, chloride, and nitrate. Pure silver is “silver” colored, but silver nitrate and silver chloride are powdery white and silver sulfide and silver oxide are dark-gray to black.
Silver is often found as a by-product during the retrieval of copper, lead, zinc, and gold ores.
Silver is used to make jewelry, silverware, electronic equipment, and dental fillings. It is also used to make photographs, in brazing alloys and solders, to disinfect drinking water and water in swimming pools, and as an antibacterial agent. Silver has also been used in lozenges and chewing gum to help people stop smoking.
Names and Identifiers
Chemical Formula: | Ag |
CAS: | 7440-22-4 |
Molecular Weight: | 107.868g/mol |
EC Number : | 231-131-3 |
MDL Number: | MFCD00003397 |
Color: | silver |
Other Names: | Argentum, Argent, Silber, Plata |
PubChem CID: | 23954 |
IUPAC Name: | Silver |
Inchl: | InChI=1S/Ag |
InChI Key: | BQCADISMDOOEFD-UHFFFAOYSA-N |
Canonical SMILES: | [Ag] |
ICSC Number: | 0810 |
Physical & Chemical Properties
Phase: | Solid |
Density: | 10.49 g/cm³ |
Boiling Point: | 2435 K (2162 °C, 3924 °F) |
Melting Point: | 11234.93 K (961.78 °C, 1763.2 °F) |
Molecular Formula: | Ag |
Flash Point: | 232 °F |
Exact Mass: | 106.905090 |
Symbol: | |
Signal Word: | Danger |
Hazard Statements: | H315-H319 |
Precautionary Statements: | P305 + P351 + P338 |
Hazard Codes: | Xi:Irritant; |
Risk Phrases: | R22 |
Safety Phrases: | S24/25 |
RIDADR: | UN 3264 |
WGK Germany: | 3 |
RTECS: | VW3500000 |
Packaging Group: | III |
Hazard Class: | 6.1 |
Naturally occurring silver is composed of two stable isotopes, 107Ag and 109Ag, with 107Ag being slightly more abundant (51.839% natural abundance).
Naturally occurring isotopes
Isotope | Mass/Da | Natural abundance (atom %) | Nuclear spin (I) | Magnetic moment (μ/μN) |
---|---|---|---|---|
107Ag | 106.905092 (6) | 51.839 (7) | 1/2 | -0.113570 |
109Ag | 108.904756 (4) | 48.161 (7) | 1/2 | -0.1306905 |
Radiosotope data
Isotope | Mass/Da | Half-life | Mode of decay | Nuclear spin | Nuclear magnetic moment |
---|---|---|---|---|---|
103Ag | 102.90897 | 1.10 h | EC to 103Pd | 7/2 | 4.47 |
104Ag | 103.90863 | 69 m | EC to 104Pd | 5 | 3.92 |
105Ag | 104.90653 | 41.3 d | EC to 105Pd | 1/2 | 0.1014 |
106Ag | 105.90667 | 8.4 d | EC to 106Pd; β– to 106Cd | 6 | 3.71 |
108Ag | 107.905954 | 2.39 m | EC to 108Pd; β– to 108Cd | 1 | 2.6884 |
110Ag | 109.906111 | 24.6 s | EC to 110Pd; β– to 110Cd | 1 | 2.7271 |
111Ag | 110.905295 | 7.47 d | β– to 111Cd | 1/2 | -0.146 |
112Ag | 111.90701 | 3.13 h | β– to 112Cd | 2 | 0.0547 |
113Ag | 112.90657 | 5.3 h | β– to 113Cd | 1/2 | 0.159 |