Neodimo
60
Nd
Grupo
Neniu
Perio
6
Bloko
f
Protonoj
Elektronoj
Neŭtronoj
60
60
84
Ĝeneralaj Propraĵoj
Atoma Nombro
60
Atommaso
144,242
Amasa Nombro
144
Kategorio
Lantanoidoj
Koloro
Arĝento
Radioaktiva
Ne
From the Greek word neos meaning new, and didymos, twin
Kristala Strukturo
Simpla Sesangula
Historio
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.
Elektronoj per ŝelo
2, 8, 18, 22, 8, 2
Elektrona Agordo
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
Fizikaj Propraĵoj
Fazo
Solido
Denso
7,007 g/cm3
Fandpunkto
1297,15 K | 1024 °C | 1875,2 °F
Bolpunkto
3347,15 K | 3074 °C | 5565,2 °F
Varmo de Fuzio
7,1 kJ/mol
Varmo de Vaporiĝo
285 kJ/mol
Specifa Varmo Kapacito
0,19 J/g·K
Krusta Abundo
0,0033%
Universa Abundo
1×10-6%
CAS Nombro
7440-00-8
PubChem Kunmetita Identiga Nombro
23934
Atomaj Propraĵoj
Atoma Radiuso
181 pm
Kovalenta Radiuso
201 pm
Elektronegativeco
1,14 (Pauling-skalo)
Potencialo de jonigo
5,525 eV
Atoma Volumo
20,6 cm3/mol
Termika Kondukto
0,165 W/cm·K
Oksidaj Ŝtatoj
2, 3
Aplikoj
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
Izotopoj
Stabilaj Izotopoj
142Nd, 143Nd, 145Nd, 146Nd, 148NdMalstabilaj Isotopoj
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