Neodimium
60
Nd
Golongan
n/a
Periode
6
Blok
f
Proton
Elektron
Neutron
60
60
84
Sifat Umum
Nomor atom
60
Massa atom
144,242
Nomor massa
144
Kategori
Lantanida
Warna
Perak
Radioaktif
Tidak
From the Greek word neos meaning new, and didymos, twin
Struktur kristal
Segienam Sederhana
Sejarah
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.
Elektron per kulit
2, 8, 18, 22, 8, 2
Konfigurasi elektron
[Xe] 4f4 6s2
Most of the world's neodymium is mined in China
Sifat Fisika
Fase
Solid
Kepadatan
7,007 g/cm3
Titik lebur
1297,15 K | 1024 °C | 1875,2 °F
Titik didih
3347,15 K | 3074 °C | 5565,2 °F
Kalor peleburan
7,1 kJ/mol
Kalor penguapan
285 kJ/mol
Kapasitas kalor molar
0,19 J/g·K
Kelimpahan di kerak bumi
0,0033%
Kelimpahan di alam semesta
1×10-6%
Nomor CAS
7440-00-8
Nomor PubChem CID
23934
Sifat Atom
Jari-jari atom
181 pm
Jari-jari kovalen
201 pm
Elektronegativitas
1,14 (Skala Pauling)
Potensi Ionisasi
5,525 eV
Volume atom
20,6 cm3/mol
Kondusivitas termal
0,165 W/cm·K
Bilangan oksidasi
2, 3
Aplikasi
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
Isotop
Isotop stabil
142Nd, 143Nd, 145Nd, 146Nd, 148NdIsotop tidak stabil
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