Neodimium

60
Nd
Kumpulan
Tiada
Kala
6
Blok
f
Proton
Elektron
Neutron
60
60
84
Ciri-Ciri Am
Nombor atom
60
Berat atom
144.242
Nombor jisim
144
Kategori
Lantanid
Warna
Perak
Radioaktif
Tidak
From the Greek word neos meaning new, and didymos, twin
Struktur hablur
Hexagonal Ringkas
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.
Bilangan elektron per petala
2, 8, 18, 22, 8, 2
Konfigurasi elektron
[Xe] 4f4 6s2
Nd
Most of the world's neodymium is mined in China
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
7.007 g/cm3
Takat lebur
1297.15 K | 1024 °C | 1875.2 °F
Takat didih
3347.15 K | 3074 °C | 5565.2 °F
Haba pelakuran
7.1 kJ/mol
Haba pengewapan
285 kJ/mol
Muatan haba molar
0.19 J/g·K
Banyak pada kerak bumi
0.0033%
Banyak pada alam semesta
1×10-6%
Ultrapure
Kredit imej: Images-of-elements
Ultrapure neodymium under argon
Nombor CAS
7440-00-8
PubChem CID Number
23934
Ciri-Ciri Atom
Jejari atom
181 pm
Jejari kovalen
201 pm
Keelektronegatifan
1.14 (Skala Pauling)
Kebolehan mengion
5.525 eV
Isipadu atom
20.6 cm3/mol
Daya pengaliran terma
0.165 W/cm·K
Keadaan pengoksidaan
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 is considered to be moderately toxic
Isotop
Isotop stabil
142Nd, 143Nd, 145Nd, 146Nd, 148Nd
Isotop 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