Hopea
47
Ag
Ryhmä
11
Jakso
5
Lohko
d
Protonia
Elektronit
Neutronia
47
47
61
Yleiset ominaisuudet
Järjestysluku
47
Atomipaino
107,8682
Massaluku
108
Luokka
Siirtymäalkuaineet
Väri
Hopea
Radioaktiivisuus
Ei
The Latin word for silver is argentum
Kiderakenne
Pintakeskinen kuutiollinen
Historia
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.
Elektroneja elektronikuorilla
2, 8, 18, 18, 1
Orbitaalirakenne
[Kr] 4d10 5s1
In ancient Egypt and Medieval Europe, silver was often more valuable than gold
Fyysiset ominaisuudet
Olomuoto
Kiinteä
Tiheys
10,49 g/cm3
Sulamispiste
1234,93 K | 961,78 °C | 1763,2 °F
Kiehumispiste
2435,15 K | 2162 °C | 3923,6 °F
Sulamislämpö
11,3 kJ/mol
Höyrystymislämpö
255 kJ/mol
Ominaislämpökapasiteetti
0,235 J/g·K
Esiintyvyys maankuoressa
7,9×10-6%
Esiintyvyys maailmankaikkeudessa
6×10-8%
Kuvalähteet: Wikimedia Commons (Alchemist-hp)
A pure silver crystal, synthetic electrolytic made with visible dendritic structures
CAS-numero
7440-22-4
PubChem CID-numero
23954
Atomiominaisuudet
Atomisäde
144 pm
Kovalenttisäde
145 pm
Elektronegatiivisuus
1,93 (Paulingin asteikko)
Ionisoitumispotentiaali
7,5762 eV
Moolitilavuus
10,3 cm3/mol
Lämmönjohtavuus
4,29 W/cm·K
Hapetusluvut
1, 2, 3
Käyttö
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
Isotooppi
Vakaat isotoopit
107Ag, 109AgEpävakaat isotoopit
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