ルテチウム
71
Lu
族
該当なし
周期
6
ブロック
d
陽子
電子
中性子
71
71
104
一般特性
原子番号
71
原子量
174.9668
質量数
175
カテゴリ
ランタノイド
色
銀色
放射性
いいえ
Lutetia is the ancient name for Paris
結晶構造
六方最密構造
歴史
French chemist Georges Urbain successfully separated lutetium from ytterbia in 1907 in Paris.
Austrian scientist Carl Auer von Welsbach and American chemist Charles James also succeeded in isolating lutetium independently in the same year.
Pure lutetium metal was first produced in 1953.
Austrian scientist Carl Auer von Welsbach and American chemist Charles James also succeeded in isolating lutetium independently in the same year.
Pure lutetium metal was first produced in 1953.
電子殻
2, 8, 18, 32, 9, 2
電子配置
[Xe] 4f14 5d1 6s2
Lutetium was the last natural rare earth element to be discovered
物理特性
相
固体
密度
9.84 g/㎝3
融点
1925.15 K | 1652 °C | 3005.6 °F
沸点
3675.15 K | 3402 °C | 6155.6 °F
融解熱
22 kJ/mol
蒸発熱
415 kJ/mol
熱容量
0.154 J/g·K
地殻中における存在比
0.000056%
宇宙空間における存在比
1×10-8%
CAS登録番号
7439-94-3
PubChem CID番号
23929
原子特性
原子半径
174 pm
共有結合半径
187 pm
電気陰性度
1.27 (ポーリングの値)
イオン化エネルギー
5.4259 eV
モル体積
17.78 ㎝3/mol
熱伝導率
0.164 W/㎝·K
酸化数
3
用途
Lutetium oxide is used to make catalysts for cracking hydrocarbons in the petrochemical industry.
Lutetium aluminum garnet has been proposed for use as a lens material in high refractive index immersion lithography.
Lutetium is used as a phosphor in LED light bulbs.
Lutetium aluminum garnet has been proposed for use as a lens material in high refractive index immersion lithography.
Lutetium is used as a phosphor in LED light bulbs.
Lutetium is considered to be non toxic
同位体
安定同位体
175Lu不安定同位体
150Lu, 151Lu, 152Lu, 153Lu, 154Lu, 155Lu, 156Lu, 157Lu, 158Lu, 159Lu, 160Lu, 161Lu, 162Lu, 163Lu, 164Lu, 165Lu, 166Lu, 167Lu, 168Lu, 169Lu, 170Lu, 171Lu, 172Lu, 173Lu, 174Lu, 176Lu, 177Lu, 178Lu, 179Lu, 180Lu, 181Lu, 182Lu, 183Lu, 184Lu