|
|
| Katrangan Umum Unsur
|
| Jeneng, Lambang, Nomer atom
|
neodymium, Nd, 60
|
| Dhèrèt kimia |
lantanida
|
| Golongan, Periode, Blok
|
n/a, 6, f
|
| Panampilan |
silvery white,
yellowish tinge
|
| Massa atom |
144.242(3) g/mol
|
| Konfigurasi elektron |
[Xe] 4f4 6s2
|
| Cacahing èlèktron saben kulit |
2, 8, 18, 22, 8, 2
|
| Ciri-ciri fisik
|
| Fase |
solid
|
| Massa jenis (watara suhu kamar) |
7.01 g/cm³
|
| Massa jenis cair ing titik lebur |
6.89 g/cm³
|
| Titik lebur |
1297 K
(1024 °C, 1875 °F)
|
| Titik umob |
3347 K
(3074 °C, 5565 °F)
|
| Kalor peleburan |
7.14 kJ/mol
|
| Kalor panguapan |
289 kJ/mol
|
| Kapasitas kalor |
(25 °C) 27.45 J/(mol·K)
|
Tekanan uap
| P/Pa |
1 |
10 |
100 |
1 k |
10 k |
100 k
|
| ing T/K |
1595 |
1774 |
1998 |
(2296) |
(2715) |
(3336)
|
|
| Ciri-ciri atom
|
| Struktur kristal |
hexagonal
|
| Bilangan oksidasi |
3
(mildly basic oxide)
|
| Elektronegativitas |
1.14 (skala Pauling)
|
Energi ionisasi
(detil)
|
ke-1: 533.1 kJ/mol
|
| ke-2: 1040 kJ/mol
|
| ke-3: 2130 kJ/mol
|
| Jari-jari atom |
185 pm
|
| Jari-jari atom (terhitung) |
206 pm
|
| Lain-lain
|
| Sifat magnetik |
ferromagnetic
|
| Resistivitas elektris |
(r.t.) (α, poly) 643 nΩ·m
|
| Konduktivitas termal |
(300 K) 16.5 W/(m·K)
|
| Muai panas |
(r.t.) (α, poly)
9.6 µm/(m·K)
|
| Kecepatan suara (pada wujud kawat) |
(20 °C) 2330 m/s
|
| Modulus Young |
(α form) 41.4 GPa
|
| Modulus rigiditas |
(α form) 16.3 GPa
|
| Modulus ruah |
(α form) 31.8 GPa
|
| Nisbah Poisson |
(α form) 0.281
|
| Kakerasan Vickers |
343 MPa
|
| Kekerasan Brinell |
265 MPa
|
| Nomor CAS |
7440-00-8
|
| Isotop
|
|
|
| Referensi
|
Neodimium (uniné /ˌniːoʊˈdɪmiəm/) iku sqawijining unsur kimia kanthi simbul Nd lan nomer atom 60.
Campuran
Campuran Neodimium awangun
Pènget
Awu logam Neodimium iku gambang murub lan bisa njalari bebaya jeblugan.
Uga delengen
Magnit Neodimium (NIB utawa Nd2Fe14B)
Réferènsi
- Los Alamos National Laboratory - Neodymium Archived 2008-12-19 at the Wayback Machine.
- "The Industrial Chemistry of the Lanthanons, Yttrium, Thorium and Uranium", by R.J. Callow, Pergamon Press 1967.
- Lindsay Chemical Division, American Potash and Chemical Corporation, Price List, 1960.
- "Chemistry of the Lanthanons", by R.C. Vickery, Butterworths 1953.
Pranala njaba
 |
Wikimedia Commons duwé médhia ngenani Neodymium. |
Wiktionary
