Sølv
47
Ag
Gruppe
11
Periode
5
Blok
d
Protoner
Elektroner
Neutroner
47
47
61
Generelle Egenskaber
Atomnummer
47
Atommasse
107,8682
Masseantal
108
Kategori
Overgangsmetaller
Farve
Sølv
Radioaktiv
Nej
The Latin word for silver is argentum
Krystalstruktur
Fladecentreret Kubisk
Historie
Silver has been used for thousands of years for ornaments and utensils, for trade, and as the basis for many monetary systems.
Its value as a precious metal was long considered second only to gold.
Slag dumps in Asia Minor and on islands in the Aegean Sea indicate that man learned to separate silver from lead as early as 3000 BC.
Its value as a precious metal was long considered second only to gold.
Slag dumps in Asia Minor and on islands in the Aegean Sea indicate that man learned to separate silver from lead as early as 3000 BC.
Elektroner i hver skal
2, 8, 18, 18, 1
Elektronkonfiguration
[Kr] 4d10 5s1
In ancient Egypt and Medieval Europe, silver was often more valuable than gold
Fysiske Egenskaber
Tilstandsform
Fast stof
Massefylde
10,49 g/cm3
Smeltepunkt
1234,93 K | 961,78 °C | 1763,2 °F
Kogepunkt
2435,15 K | 2162 °C | 3923,6 °F
Smeltevarme
11,3 kJ/mol
Fordampningsvarme
255 kJ/mol
Varmefylde
0,235 J/g·K
Forekomst i jordskorpen
7,9×10-6%
Forekomst i universet
6×10-8%
Billede akkrediteringer: Wikimedia Commons (Alchemist-hp)
A pure silver crystal, synthetic electrolytic made with visible dendritic structures
CAS-nummer
7440-22-4
PubChem CID-nummer
23954
Atomare egenskaber
Atomradius
144 pm
Kovalent radius
145 pm
Elektronegativitet
1,93 (Paulings skala)
Ioniseringspotentiale
7,5762 eV
Atomvolumen
10,3 cm3/mol
Varmeledningsevne
4,29 W/cm·K
Oxidationstrin
1, 2, 3
Anvendelser
Silver has long been valued as a precious metal, and is used as an investment, to make ornaments, jewelry, high-value tableware, utensils, and currency coins.
It is also used in electrical contacts and conductors, in mirrors and in catalysis of chemical reactions.
Its compounds are used in photographic film, and dilute silver nitrate solutions and other silver compounds are used as disinfectants and microbiocides
It is also used in electrical contacts and conductors, in mirrors and in catalysis of chemical reactions.
Its compounds are used in photographic film, and dilute silver nitrate solutions and other silver compounds are used as disinfectants and microbiocides
Silver is considered to be non-toxic
Isotoper
Stabile isotoper
107Ag, 109AgUstabile isotoper
93Ag, 94Ag, 95Ag, 96Ag, 97Ag, 98Ag, 99Ag, 100Ag, 101Ag, 102Ag, 103Ag, 104Ag, 105Ag, 106Ag, 108Ag, 110Ag, 111Ag, 112Ag, 113Ag, 114Ag, 115Ag, 116Ag, 117Ag, 118Ag, 119Ag, 120Ag, 121Ag, 122Ag, 123Ag, 124Ag, 125Ag, 126Ag, 127Ag, 128Ag, 129Ag, 130Ag