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- Dưới đây là danh sách 17 nguyên tố đất hiếm.
Kí
Z Tên Từ nguyên học Ứng dụng tiêu biểu
hiệu
2 từ tiếng Latin Scandia (Scandinavia), nơi
Sc Scandi hợp kim Nhôm-scandi
1 quặng đất hiếm này đầu tiên được phát hiện.
3 từ làng Ytterby, Thụy Điển, nơi phát hiện granat YAG, YBCO Siêu
Y Yttri
9 quặng đất hiếm này đầu tiên. dẫn nhiệt độ cao
High refractive index
glass, flint, hydrogen
5 trong tiếng Hy Lạp "lanthanon", nghĩa là Tôi storage, battery-electrodes,
La Lantan
7 ẩn nấp. camera lenses, fluid
catalytic cracking catalyst
for oil refineries
Chemical oxidizing agent,
polishing powder, yellow
colors in glass and
5
Ce Xeri for the dwarf planet Ceres. ceramics, catalyst for self-
8
cleaning ovens, fluid
catalytic cracking catalyst
for oil refineries
Rare-earth magnets, lasers,
5 from the Greek "praso", meaning leek-green,
Pr Praseodymi green colors in glass and
9 and "didymos", meaning twin.
ceramics, flint
Rare-earth magnets, lasers,
6 from the Greek "neo", meaning new-one, and violet colors in glass and
Nd Neodymi
0 "didymos", meaning twin. ceramics, ceramic
capacitors
6 for the Titan Prometheus, who brought fire to
Pm Promethi Nuclear batteries
1 mortals.
- 6 for Vasili Samarsky-Bykhovets, who Rare-earth magnets, lasers,
Sm Samarium
2 discovered the rare earth ore samarskite. neutron capture, masers
Red and blue phosphors,
6
Eu Europi for the continent of Europe. lasers, mercury-vapor
3
lamps
Rare-earth magnets, high
refractive index glass or
6 for Johan Gadolin (1760–1852), to honor his
Gd Gadolini garnets, lasers, x-ray tubes,
4 investigation of rare earths.
computer memories,
neutron capture
6 Green phosphors, lasers,
Tb Terbi for the village of Ytterby, Sweden.
5 fluorescent lamps
6 from the Greek "dysprositos", meaning hard to
Dy Dysprosi Rare-earth magnets, lasers
6 get.
6 for Stockholm (in Latin, "Holmia"), native city
Ho Holmi Laser
7 of one of its discoverers.
6
Er Erbi for the village of Ytterby, Sweden. Lasers, vanadium steel
8
6
Tm Thuli for the mythological land of Thule. Portable X-ray machines
9
7 Infrared lasers, chemical
Yb Ytterbi for the village of Ytterby, Sweden.
0 reducing agent
7
Lu Luteti for Lutetia, the city which later became Paris.
1
nguon tai.lieu . vn
