What Do You Know About Terbium?

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What Do You Know About Terbium? - 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.


Questions and Answers
  • 1. 

    The chemical symbol of the element Terbium is?

    • A.

      Te

    • B.

      Tb

    • C.

      Tb

    • D.

      Te

    Correct Answer
    B. Tb
    Explanation
    Terbium is a chemical element with the symbol Tb, hence the correct answer is Tb.

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  • 2. 

    Terbium has an atomic mass of?

    • A.

      158

    • B.

      188

    • C.

      198

    • D.

      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. 

    The chemical element Terbium was discovered by?

    • A.

      Cral Roger

    • B.

      Carl Gustaf

    • C.

      Ellie Ristik

    • D.

      Mitch Rogers

    Correct Answer
    B. 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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  • 4. 

    Terbium has an atomic number of?

    • A.

      88

    • B.

      65

    • C.

      92

    • D.

      111

    Correct Answer
    B. 65
    Explanation
    Terbium has an atomic number of 65 because the atomic number represents the number of protons in an atom's nucleus. Each element has a unique atomic number, and in the case of terbium, it has 65 protons. The other options (88, 92, and 111) are incorrect as they do not correspond to the atomic number of terbium.

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  • 5. 

    In what year was Terbium discovered?

    • A.

      1900

    • B.

      1843

    • C.

      1777

    • D.

      1999

    Correct Answer
    B. 1843
    Explanation
    Terbium was discovered in 1843.

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  • 6. 

    Terbium is used as a dopant in which of these compounds?

    • A.

      Calcium fluoride

    • B.

      Zinc oxide

    • C.

      Zinc fluoride

    • D.

      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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  • 7. 

    What function does Terbium perform in fuel cells which operate at elevated temperatures?

    • A.

      Drying agent

    • B.

      Catalyst

    • C.

      Crystal stabilizer

    • D.

      Dopant

    Correct Answer
    C. 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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  • 8. 

    Which of these is an ore of terbium?

    • A.

      Chlorite

    • B.

      Bastnasite

    • C.

      Lorite

    • D.

      Metite

    Correct Answer
    B. 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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  • 9. 

    Terbium reacts with hot water to form?

    • A.

      Terbiumite

    • B.

      Terbium oxide

    • C.

      Terbium hydroxide

    • D.

      Terboxide

    Correct Answer
    C. Terbium hydroxide
    Explanation
    Terbium reacts with hot water to form terbium hydroxide.

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  • 10. 

    How many stable isotopes has terbium?

    • A.

      3

    • B.

      1

    • C.

      4

    • D.

      5

    Correct Answer
    B. 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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  • Current Version
  • Mar 19, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 31, 2018
    Quiz Created by
    Jaksiboy
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