47
Ag
11
週期
5
d
個質子
電子
個中子
47
47
61
一般屬性
原子序數
47
標準原子質量
107.8682
品質編號
108
類別
過渡金屬
顏色
銀色
放射性
The Latin word for silver is argentum
晶體結構
面居中立方
歷史
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.
每個外殼的電子
2, 8, 18, 18, 1
電子排布
[Kr] 4d10 5s1
Ag
In ancient Egypt and Medieval Europe, silver was often more valuable than gold
物理性質
物態
固體
密度
10.49 g/cm3
熔點
1234.93 K | 961.78 °C | 1763.2 °F
沸點
2435.15 K | 2162 °C | 3923.6 °F
熔化熱
11.3 kJ/mol
汽化熱
255 kJ/mol
比熱容
0.235 J/g·K
地殼豐度
7.9×10-6%
宇宙豐度
6×10-8%
A
圖片來源: Wikimedia Commons (Alchemist-hp)
A pure silver crystal, synthetic electrolytic made with visible dendritic structures
CAS 編號
7440-22-4
Pubchem CID 編號
23954
原子性質
原子半徑
144 pm
共價半徑
145 pm
電負性
1.93 (鲍林标度)
電離電位
7.5762 eV
原子體積
10.3 cm3/mol
熱導率
4.29 W/cm·K
氧化態
1, 2, 3
應用
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
同位素
穩定同位素
107Ag, 109Ag
不穩定同位素
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