Neodimyum
60
Nd
Grup
yok
Periyot
6
Blok
f
Protonlar
Elektronlar
Nötronlar
60
60
84
Temel Özellikleri
Atom numarası
60
Atom ağırlığı
144,242
Kütle Numarası
144
Kategori
Lantanit
Renk
Gümüşi
Radyoaktif
Hayir
From the Greek word neos meaning new, and didymos, twin
Kristal yapısı
Basit altıgen
Tarihi
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.
Enerji seviyesi başına Elektronlar
2, 8, 18, 22, 8, 2
Elektron dizilimi
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
Fiziksel Özellikleri
Faz
Katı
Yoğunluk
7,007 g/cm3
Ergime noktası
1297,15 K | 1024 °C | 1875,2 °F
Kaynama noktası
3347,15 K | 3074 °C | 5565,2 °F
Ergime ısısı
7,1 kJ/mol
Buharlaşma ısısı
285 kJ/mol
Isı kapasitesi
0,19 J/g·K
Dünya kabuğundaki bulunulabilirliği
0,0033%
Evrendeki bulunulabilirliği
1×10-6%
CAS Numarası
7440-00-8
PubChem CID Numarası
23934
Atom Özellikleri
Atom yarıçapı
181 pm
Kovalent yarıçapı
201 pm
Elektronegatifliği
1,14 (Pauling ölçeği)
İyonlaşma enerjisi
5,525 eV
Atomik Hacim
20,6 cm3/mol
Isıl iletkenlik
0,165 W/cm·K
Yükseltgenme seviyeleri
2, 3
Uygulamalar
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
İzotoplar
Kararlı izotoplar
142Nd, 143Nd, 145Nd, 146Nd, 148NdKararsız izotoplar
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