Neodim
60
Nd
Guruh
Nomaʼlum
Davr
6
Blok
f
Protonlar
Elektronlar
Neytronlar
60
60
84
Umumiy xususiyatlar
Atom raqami
60
Atom massasi
144,242
Mass raqami
144
Turkum
Lantanoidlar
Ranggi
Kumush
Radioaktivlik
Yoʻq
From the Greek word neos meaning new, and didymos, twin
Kristall tuzilma
Oddiy olti burchakli
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.
Qobiqdagi elektronlar soni
2, 8, 18, 22, 8, 2
Elektron konfiguratsiyasi
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
Jismoniy xususiyatlar
Faza
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
Eritish issiqligi
7,1 kJ/mol
Bugʻlanish issiqligi
285 kJ/mol
Solishtirma issiqlik sigʻimi
0,19 J/g·K
Yer po‘stidagi miqdori
0,0033%
Olamdagi miqdori
1×10-6%
CAS raqami
7440-00-8
PubChem CID raqami
23934
Atom xususiyatlari
Atom radiusi
181 pm
Kovalentlik radiusi
201 pm
Elektrmanfiylik
1,14 (Poling boʻyicha)
Ionlashish potensiali
5,525 eV
Molyar hajm
20,6 cm3/mol
Issiqlik oʻtkazuvchanlik
0,165 W/cm·K
Oksidlanish darajasi
2, 3
Qo‘llanilish sohalari
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