Perak

47
Ag
Golongan
11
Periode
5
Blok
d
Proton
Elektron
Neutron
47
47
61
Sifat Umum
Nomor atom
47
Massa atom
107,8682
Nomor massa
108
Kategori
Logam transisi
Warna
Perak
Radioaktif
Tidak
The Latin word for silver is argentum
Struktur kristal
Kubik Berpusat-muka
Sejarah
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.
Elektron per kulit
2, 8, 18, 18, 1
Konfigurasi elektron
[Kr] 4d10 5s1
Ag
In ancient Egypt and Medieval Europe, silver was often more valuable than gold
Sifat Fisika
Fase
Solid
Kepadatan
10,49 g/cm3
Titik lebur
1234,93 K | 961,78 °C | 1763,2 °F
Titik didih
2435,15 K | 2162 °C | 3923,6 °F
Kalor peleburan
11,3 kJ/mol
Kalor penguapan
255 kJ/mol
Kapasitas kalor molar
0,235 J/g·K
Kelimpahan di kerak bumi
7,9×10-6%
Kelimpahan di alam semesta
6×10-8%
A
Kredit Gambar: Wikimedia Commons (Alchemist-hp)
A pure silver crystal, synthetic electrolytic made with visible dendritic structures
Nomor CAS
7440-22-4
PubChem CID Number
23954
Sifat Atom
Jari-jari atom
144 pm
Jari-jari kovalen
145 pm
Elektronegativitas
1,93 (Skala Pauling)
Potensi Ionisasi
7,5762 eV
Volume atom
10,3 cm3/mol
Kondusivitas termal
4,29 W/cm·K
Bilangan oksidasi
1, 2, 3
Aplikasi
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
Silver is considered to be non-toxic
Isotop
Isotop stabil
107Ag, 109Ag
Isotop tidak stabil
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