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Is terbium a solid liquid or gas at room temperature?

Is terbium a solid liquid or gas at room temperature?

Yttrium and terbium, as well as erbium and ytterbium, are named after the village of Ytterby in Sweden….

Terbium
Phase at STP solid
Melting point 1629 K ​(1356 °C, ​2473 °F)
Boiling point 3396 K ​(3123 °C, ​5653 °F)
Density (near r.t. ) 8.23 g/cm3

What are the properties of terbium?

Terbium is a soft, malleable, ductile, silver-gray metal member of the lanthanide group of the periodic table. It is reasonably stable in air, but it is slowly oxidised and it reacts with cold water. Terbium is rare and expensive, so it has few commercial uses.

What type of element is terbium?

lanthanide
terbium (Tb), chemical element, a rare-earth metal of the lanthanide series of the periodic table.

What is special about terbium?

Terbium is a silvery rare-earth metal. It’s soft, ductile and malleable. It doesn’t naturally occur as a free element, but terbium is part of many minerals, such as gadolinite, euxenite, xenotime and monazite.

Is terbium paramagnetic or diamagnetic?

Magnetic Type of the elements

Chromium Antiferromagnetic Sodium
Antimony Diamagnetic Samarium
Tellurium Diamagnetic Europium
Iodine Diamagnetic Terbium
Xenon Diamagnetic Dysprosium

Where is terbium used?

Terbium is used to dope calcium fluoride, calcium tungstate and strontium molybdate, all used in solid-state devices. It is also used in low-energy lightbulbs and mercury lamps. It has been used to improve the safety of medical x-rays by allowing the same quality image to be produced with a much shorter exposure time.

What is the hardness of terbium?

There are 14 general types of such patterns known as Bravais lattices….Summary.

Element Terbium
Brinell Hardness 680 MPa
Vickers Hardness 860 MPa

What is PR in the periodic table?

praseodymium (Pr), chemical element, a rare-earth metal of the lanthanide series of the periodic table.

What state of matter is oxygen in?

Oxygen
Phase at STP gas
Melting point (O2) 54.36 K ​(−218.79 °C, ​−361.82 °F)
Boiling point (O2) 90.188 K ​(−182.962 °C, ​−297.332 °F)
Density (at STP) 1.429 g/L

What is the meaning of terbium?

: a metallic element of the rare-earth group with atomic number 65 that occurs naturally only in combination and that is used especially in alloys for electronic equipment and as a green phosphor (see phosphor sense 2) in electronic displays — see Chemical Elements Table.

Is terbium a conductor?

Named after the town of Ytterby, Sweden, terbium is a soft, silvery-gray metal that can be cut with a knife. Terbium is used in semi-conductors and lasers. It is also used to produce the green color in color television tubes.

What is Terbium used in?

How is terbium prepared in a pure form?

The metal is prepared in a highly pure form by metallothermic reduction of the anhydrous fluoride with calcium metal. Terbium exists in three allotropic (structural) forms. The α-phase is close-packed hexagonal with a = 3.6055 Å and c = 5.6966 Å at room temperature.

What are the three allotropic forms of terbium?

Terbium exists in three allotropic (structural) forms. The α-phase is close-packed hexagonal with a = 3.6055 Å and c = 5.6966 Å at room temperature. The ferromagnetic ordering below 220 K is accompanied by an orthorhombic distortion of the hexagonal lattice to the β-phase with a = 3.605 Å, b = 6.244 Å, and c = 5.706 Å at 77 K (−196 °C, or −321 °F).

What is the half life of terbium isotopes?

A total of 36 (excluding nuclear isomers) radioactive isotopes of terbium have been identified. Their mass ranges from 135 to 171 with half-life ranging from more than 200 nanoseconds (terbium-138) to 180 years (terbium-158).

How did Carl Mosander discover the element terbium?

Terbium was first isolated in 1843 by the Swedish chemist Carl Mosander at Stockholm. He had already investigated cerium oxide and separated a new element from it, lanthanum, and now he focussed his attention on yttrium, discovered in 1794, because he thought this too might harbour another element.