1. Home >
  2. Blog >
  3. Blog details

Physical Properties of 17 Rare Earth Elements

Author : Jordan | Last Updated :

According to the electronic layer structure, physical properties of rare earth elements, symbiosis in minerals and different ionic radius, the 17 rare earth elements are usually divided into two groups:

Light rare earth elements: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, and gadolinium.

Heavy rare earth elements: terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium.

The following table shows their physical properties
Atomic number Elements Atomic weight Ionic radius (Å) Density (g/cm³) Meltability (℃) Boiling Point (℃) The melting point of the oxide (℃) Specific resistance Ω×10cm6 Ion magnetic moment (μB) Thermal capture cross-section (barn)
57 La 138.9 1.22 6.19 920±5 4230 2315 56.8 0 8.9
58 Ce 140.1 1.18 6.768 804±5 2930 1950 75.3 2.56 0.7
59 Pr 140.9 1.16 6.769 935±5 3020 2500 68 3.62 11.2
60 Nd 144.3 1.15 7.007 1024±5 3180 2270 64.3 3.68 46
61 Pm 147 1.14 － － － － － 2.83 －
62 Sm 150.4 1.13 7.504 1052±5 1630 2350 88 1.55～1.65 5500
63 Eu 152 1.13 5.166 826±10 1490 2050 81.3 3.40～3.50 4600
64 Gd 157.26 1.11 7.868 1350±20 2730 2350 140.5 7.94 46000
65 Tb 158.93 1.09 8.253 1336 2530 2387 － 9.7 44
66 Dy 162.51 1.07 8.565 1485±20 2330 2340 56 10.6 1100
67 Ho 164.94 1.05 8.799 1490 2330 2360 87 10.6 64
68 Er 167.27 1.04 9.058 1500～1550 2630 2355 107 9.6 166
69 Tm 168.94 1.04 9.318 1500～1600 2130 2400 79 7.6 118
70 Yb 173.04 1 6.959 824±5 1530 2346 27 4.5 36
71 Lu 174.99 0.99 9.849 1650～1750 1930 2400 79 0 108
21 Sc 44.97 0.83 2.995 1550～1600 2750 － － － 13
39 Y 88.92 1.06 4.472 1552 3030 2680 － － 1.27
author head images
Author : Jordan Jordan is the writer of the blog with a broad knowledge of this industry. Most importantly, he hopes to help you in your projects sincerely.

NEED HELP?WELCOME TO CONTACT US

As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.

  • Contact us for free to get a quote
  • Contact us for more detailed information on the product
  • Contact us for a free custom production line

Your email will only for contact and not be shared with any third parties.

  • Product Name
  • Name
  • Email*
  • Phone or Whatsapp
  • Please enter the material to be processed, expected capacity,feeding size (mm), final product size (mm), or other requirements.

Fote is a manufacturer of high-end mining machinery in Asia.

contact@sinoftm.com
FTM Machinery-Green Intelligent Mining Machine Manufacturing and Exporting Base

Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.