ネオジム
60
Nd
族
該当なし
周期
6
ブロック
f
陽子
電子
中性子
60
60
84
一般特性
原子番号
60
原子量
144.242
質量数
144
カテゴリ
ランタノイド
色
銀色
放射性
いいえ
From the Greek word neos meaning new, and didymos, twin
結晶構造
六方最密構造
歴史
Neodymium was first identified in 1885, in Vienna, by the Austrian chemist Carl Auer von Welsbach.
It was discovered in didymium, a substance incorrectly said by Carl Gustav Mosander to be a new element in 1841.
Pure neodymium metal was isolated in 1925.
It was discovered in didymium, a substance incorrectly said by Carl Gustav Mosander to be a new element in 1841.
Pure neodymium metal was isolated in 1925.
電子殻
2, 8, 18, 22, 8, 2
電子配置
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
物理特性
相
固体
密度
7.007 g/㎝3
融点
1297.15 K | 1024 °C | 1875.2 °F
沸点
3347.15 K | 3074 °C | 5565.2 °F
融解熱
7.1 kJ/mol
蒸発熱
285 kJ/mol
熱容量
0.19 J/g·K
地殻中における存在比
0.0033%
宇宙空間における存在比
1×10-6%
CAS登録番号
7440-00-8
PubChem CID番号
23934
原子特性
原子半径
181 pm
共有結合半径
201 pm
電気陰性度
1.14 (ポーリングの値)
イオン化エネルギー
5.525 eV
モル体積
20.6 ㎝3/mol
熱伝導率
0.165 W/㎝·K
酸化数
2, 3
用途
Neodymium is used to make specialized goggles for glass blowers.
Neodymium magnets appear in products such as microphones, professional loudspeakers, in-ear headphones, guitar and bass guitar pick-ups and computer hard disks.
Glass containing neodymium can be used as a laser material to produce coherent light.
Neodymium magnets appear in products such as microphones, professional loudspeakers, in-ear headphones, guitar and bass guitar pick-ups and computer hard disks.
Glass containing neodymium can be used as a laser material to produce coherent light.
Neodymium is considered to be moderately toxic
同位体
安定同位体
142Nd, 143Nd, 145Nd, 146Nd, 148Nd不安定同位体
124Nd, 125Nd, 126Nd, 127Nd, 128Nd, 129Nd, 130Nd, 131Nd, 132Nd, 133Nd, 134Nd, 135Nd, 136Nd, 137Nd, 138Nd, 139Nd, 140Nd, 141Nd, 144Nd, 147Nd, 149Nd, 150Nd, 151Nd, 152Nd, 153Nd, 154Nd, 155Nd, 156Nd, 157Nd, 158Nd, 159Nd, 160Nd, 161Nd