Neodim
60
Nd
Guruh
Nomaʼlum
Davr
6
Block
f
Protonlar
Elektronlar
Neytronlar
60
60
84
General Properties
Atom raqami
60
Atom massasi
144,242
Mass Number
144
Turkum
Lantanoidlar
Ranggi
Silver
Radioaktivlik
Yoʻq
From the Greek word neos meaning new, and didymos, twin
Crystal Structure
Simple Hexagonal
Tarix
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.
Electrons per shell
2, 8, 18, 22, 8, 2
Elektron konfiguratsiyasi
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
Physical Properties
Phase
Qattiq modda
Zichlik
7,007 g/cm3
Erish harorati
1297,15 K | 1024 °C | 1875,2 °F
Qaynash harorati
3347,15 K | 3074 °C | 5565,2 °F
Heat of Fusion
7,1 kJ/mol
Heat of Vaporization
285 kJ/mol
Solishtirma issiqlik sigʻimi
0,19 J/g·K
Abundance in Earth's crust
0,0033%
Abundance in Universe
1×10-6%
CAS Number
7440-00-8
PubChem CID Number
23934
Atomic Properties
Atom radiusi
181 pm
Kovalentlik radiusi
201 pm
Elektrmanfiylik
1,14 (Poling boʻyicha)
Ionization Potential
5,525 eV
Molyar hajm
20,6 cm3/mol
Issiqlik oʻtkazuvchanlik
0,165 W/cm·K
Oksidlanish darajasi
2, 3
Applications
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
Izotoplar
Barqaror izotoplar
142Nd, 143Nd, 145Nd, 146Nd, 148NdBeqaror 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