What Do You Know About Terbium?

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| By Jaksiboy

Jaksiboy

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1/10 Questions

Terbium has an atomic number of?
- 88
- 65
- 92
- 111

About This Quiz

Terbium is a silvery-white, ductile and malleable chemical element. It is twice as common in the Earth's crust as silver, with its most important ore as cerite.

2.

Terbium has an atomic mass of?
- 158
- 188
- 198
- 101
Correct Answer

A. 158

Explanation

Terbium has an atomic mass of 158. This is the correct answer because atomic mass refers to the average mass of all the isotopes of an element, taking into account their relative abundance. In the case of terbium, the average atomic mass is 158 atomic mass units (amu).

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3.

In what year was Terbium discovered?
- 1900
- 1843
- 1777
- 1999
Correct Answer

A. 1843

Explanation

Terbium was discovered in 1843.

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4.

Terbium is used as a dopant in which of these compounds?
- Calcium fluoride
- Zinc oxide
- Zinc fluoride
- Magnesium oxide
Correct Answer

A. Calcium fluoride

Explanation

Terbium is used as a dopant in calcium fluoride. Dopants are added to a material to alter its properties. In the case of calcium fluoride, terbium is added to enhance its luminescent properties. Terbium-doped calcium fluoride is commonly used in scintillation detectors, X-ray imaging, and other applications that require the detection and measurement of radiation.

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5.

The chemical symbol of the element Terbium is?
- Te
- Tb
- Tb
- Te
Correct Answer

A. Tb

Explanation

Terbium is a chemical element with the symbol Tb, hence the correct answer is Tb.

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6.

The chemical element Terbium was discovered by?
- Cral Roger
- Carl Gustaf
- Ellie Ristik
- Mitch Rogers
Correct Answer

A. Carl Gustaf

Explanation

Carl Gustaf is the correct answer because he is the Swedish chemist who discovered the chemical element Terbium.

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7.

Which of these is an ore of terbium?
- Chlorite
- Bastnasite
- Lorite
- Metite
Correct Answer

A. Bastnasite

Explanation

Bastnasite is an ore of terbium. Terbium is a rare earth element that is commonly found in minerals such as bastnasite. Bastnasite is a group of rare earth carbonate minerals that contain a variety of rare earth elements, including terbium. Therefore, bastnasite can be considered as an ore of terbium.

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8.

Terbium reacts with hot water to form?
- Terbiumite
- Terbium oxide
- Terbium hydroxide
- Terboxide
Correct Answer

A. Terbium hydroxide

Explanation

Terbium reacts with hot water to form terbium hydroxide.

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9.

What function does Terbium perform in fuel cells which operate at elevated temperatures?
- Drying agent
- Catalyst
- Crystal stabilizer
- Dopant
Correct Answer

A. Crystal stabilizer

Explanation

Terbium performs the function of a crystal stabilizer in fuel cells that operate at elevated temperatures. It helps to maintain the structural integrity of the crystal lattice, preventing it from breaking down or undergoing undesirable changes due to the high temperatures. This stabilization is crucial for the efficient and reliable operation of the fuel cell.

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10.

How many stable isotopes has terbium?
- 3
- 1
- 4
- 5
Correct Answer

A. 1

Explanation

Terbium has only one stable isotope. Isotopes are variants of an element that have the same number of protons but different numbers of neutrons. Stable isotopes do not decay over time, unlike radioactive isotopes. In the case of terbium, it has one stable isotope with 65 protons and 94 neutrons, which is terbium-159.

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