Neodim
60
Nd
Skupina
n/a
Perioda
6
Blok
f
Protons
Electrons
Neutrons
60
60
84
General Properties
Vrstno število
60
Atomska teža
144,242
Mass Number
144
Kategorija
Lantanoidi
Barva
Silver
Radioactive
Ne
From the Greek word neos meaning new, and didymos, twin
Kristalna struktura
Heksagonalna
Zgodovina
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
Razporeditev elektronov
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
Physical Properties
Faza snovi
Trdnina
Gostota
7,007 g/cm3
Tališče
1297,15 K | 1024 °C | 1875,2 °F
Vrelišče
3347,15 K | 3074 °C | 5565,2 °F
Talilna toplota
7,1 kJ/mol
Izparilna toplota
285 kJ/mol
Toplotna kapaciteta
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
Atomski polmer
181 pm
Kovalentni polmer
201 pm
Elektronegativnost
1,14 (Paulingova lestvica)
Ionization Potential
5,525 eV
Atomic Volume
20,6 cm3/mol
Toplotna prevodnost
0,165 W/cm·K
Oksidacijska stanja
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
Isotopes
Stable Isotopes
142Nd, 143Nd, 145Nd, 146Nd, 148NdUnstable Isotopes
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