ルテニウム
44
Ru
族
8
周期
5
ブロック
d
陽子
電子
中性子
44
44
57
一般特性
原子番号
44
原子量
101.07
質量数
101
カテゴリ
遷移元素
色
銀色
放射性
いいえ
From the Latin word Ruthenia, Russia
結晶構造
六方最密構造
歴史
Jędrzej Śniadecki isolated the element in 1807, but his work was not ratified.
Jöns Berzelius and Gottfried Osann nearly discovered ruthenium in 1827.
In 1844, Karl Ernst Claus confirmed that there was a new element and isolated ruthenium from the platinum residues of the rouble production while he was working in Kazan University, Kazan.
Jöns Berzelius and Gottfried Osann nearly discovered ruthenium in 1827.
In 1844, Karl Ernst Claus confirmed that there was a new element and isolated ruthenium from the platinum residues of the rouble production while he was working in Kazan University, Kazan.
電子殻
2, 8, 18, 15, 1
電子配置
[Kr] 4d7 5s1
Ruthenium is unaffected by air, water and acids
物理特性
相
固体
密度
12.37 g/㎝3
融点
2607.15 K | 2334 °C | 4233.2 °F
沸点
4423.15 K | 4150 °C | 7502 °F
融解熱
25.7 kJ/mol
蒸発熱
580 kJ/mol
熱容量
0.238 J/g·K
地殻中における存在比
9.9×10-8%
宇宙空間における存在比
4×10-7%
CAS登録番号
7440-18-8
PubChem CID番号
23950
原子特性
原子半径
134 pm
共有結合半径
146 pm
電気陰性度
2.2 (ポーリングの値)
イオン化エネルギー
7.3605 eV
モル体積
8.3 ㎝3/mol
熱伝導率
1.17 W/㎝·K
酸化数
-2, 1, 2, 3, 4, 5, 6, 7, 8
用途
Ruthenium is used in platinum and palladium alloys to make wear-resistant electrical contacts.
Ruthenium dioxide and lead and bismuth ruthenates are used in thick-film chip resistors.
Fountain pen nibs are frequently tipped with alloys containing ruthenium.
Ruthenium is a versatile catalyst.
Ruthenium dioxide and lead and bismuth ruthenates are used in thick-film chip resistors.
Fountain pen nibs are frequently tipped with alloys containing ruthenium.
Ruthenium is a versatile catalyst.
Ruthenium is a suspected carcinogen and its compounds strongly stain the skin
同位体
安定同位体
96Ru, 98Ru, 99Ru, 100Ru, 101Ru, 102Ru, 104Ru不安定同位体
87Ru, 88Ru, 89Ru, 90Ru, 91Ru, 92Ru, 93Ru, 94Ru, 95Ru, 97Ru, 103Ru, 105Ru, 106Ru, 107Ru, 108Ru, 109Ru, 110Ru, 111Ru, 112Ru, 113Ru, 114Ru, 115Ru, 116Ru, 117Ru, 118Ru, 119Ru, 120Ru