Neodimium
60
Nd
Groep
n/a
Periode
6
Blok
f
Protrone
Elektrone
Neutrone
60
60
84
Algemene Eienskappe
Atoom Nommer
60
Atoommassa
144,242
Massa Nommer
144
Kategorie
Lantaniede
Kleur
Silver
Radioaktief
Nee
From the Greek word neos meaning new, and didymos, twin
Kristalstruktuur
Eenvoudige seshoekige
Geskiendenis
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.
Elektrone per skil
2, 8, 18, 22, 8, 2
Elektronkonfigurasie
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
Fisiese Eienskappe
Fase
Soliede
Digtheid
7,007 g/cm3
Smeltpunt
1297,15 K | 1024 °C | 1875,2 °F
Kookpunt
3347,15 K | 3074 °C | 5565,2 °F
Heat of Fusion
7,1 kJ/mol
Heat of Vaporization
285 kJ/mol
Spesifieke Hitte Kapasiteit
0,19 J/g·K
Oorvloed in die aardkors
0,0033%
Oorvloed in die heelal
1×10-6%
CAS Nommer
7440-00-8
PubChem CID Nommer
23934
Atomiese Eienskappe
Atoom radius
181 pm
Kovalente Radius
201 pm
Elektronegatiewiteit
1,14 (Pauling scale)
Ionisasie potensiaal
5,525 eV
Atoom volume
20,6 cm3/mol
Termiese geleidingsvermoë
0,165 W/cm·K
Oksidasiestate
2, 3
Toepassings
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
Isotope
Stabiele Isotope
142Nd, 143Nd, 145Nd, 146Nd, 148NdOnstabiele Isotope
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