Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
rare-earth element
Table of Contents
References & Edit History Quick Facts & Related Topics
Images
electron probabilities for gadolinium metallic radii melting points and transformation temperatures boiling points Crystal structures of rare-earth metals. linear coefficient of thermal expansion elastic moduli free energy of formation of rare-earth sesquioxides The arrangement of copper, yttrium, oxygen, and barium ions in yttrium barium copper oxide (YBa2Cu3O7), an example of a superconducting ceramic crystal structure.
For Students
rare earth metal summary
Quizzes
Periodic Table of the elements concept image (chemistry)
Facts You Should Know: The Periodic Table Quiz
Periodic table of the elements. Left column indicates the subshells that are being filled as atomic number Z increases. The body of the table shows element symbols and Z. analysis and measurement
Periodic Table of the Elements
Discover
Chinese pictograph, calligraphy tablet of Huang Tingjian, a famous calligrapher in Ancient Song Dynasty. The background of Chinese cultural elements.
The World’s 5 Most Commonly Used Writing Systems
Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,
Which Religion Is the Oldest?
Russian grand duchess Anastasia; undated photograph. (Anastasiya Nikolayevna, Tsar Nicholas II)
Did Duchess Anastasia Survive Her Family’s Execution?
NBA Lakers Celtics Finals Kevin Garnett shooting.
10 Great Sports Rivalries
New Zealand. Political/Physical map. Includes locator.
Where Is “Old Zealand”?
"Landing of Columbus" by John Vanderlyn, oil on canvas; commissioned 1836/1837, placed 1847. In the rotunda of the U.S. Capitol, Washington, D.C. 12' x 18' ft. (3.66 m. x 5.49 m.) Christopher Columbus and members of his crew are shown on a beach
5 Unbelievable Facts About Christopher Columbus
World Data Locator Map: Australia
Is Australia an Island?

rare-earth element: Facts & Related Content

Written and fact-checked by
The Information Architects of Encyclopaedia Britannica

The Information Architects maintain a master list of the topics included in the corpus of  Encyclopædia Britannica, and create and manage the relationships between them.
The Information Architects of Encyclopaedia Britannica

News •

Tesla’s Humanoid Robot Plan Disrupted by China Rare Earth Curbs • Apr. 23, 2025, 5:20 AM ET (Bloomberg.com)
Tariff War: US Rare Earth Miner MP Materials Halts Exports to China • Apr. 17, 2025, 7:29 AM ET (Bloomberg.com)
Seven Rare Earth Metals That China Is Weaponizing Against the US • Apr. 16, 2025, 2:26 AM ET (Bloomberg.com)
What Are Rare Earth Metals, the Exports Halted by China? • Apr. 15, 2025, 6:16 AM ET (New York Times)
China Halts Critical Rare Earth Exports as Trade War Intensifies • Apr. 15, 2025, 6:03 AM ET (New York Times)

Facts

Also Known As rare-earth metal • inner transition element

Photos

electron probabilities for gadolinium
metallic radii
melting points and transformation temperatures
boiling points
Crystal structures of rare-earth metals.
linear coefficient of thermal expansion
elastic moduli
free energy of formation of rare-earth sesquioxides
The arrangement of copper, yttrium, oxygen, and barium ions in yttrium barium copper oxide (YBa2Cu3O7), an example of a superconducting ceramic crystal structure.
See All Images →

Related Topics and References

Topics

Key People

Frank Harold Spedding
American chemist
Carl Gustaf Mosander
Swedish chemist

Related Quizzes and Features

Quiz
Periodic Table of the elements concept image (chemistry)
Facts You Should Know: The Periodic Table Quiz
Periodic Table of the elements concept image (chemistry)
Facts You Should Know: The Periodic Table Quiz
Periodic table of the elements. Left column indicates the subshells that are being filled as atomic number Z increases. The body of the table shows element symbols and Z. analysis and measurement
Periodic Table of the Elements