Atomic Masses and Isotope Data Quiz

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Atomic Masses And Isotope Data Quiz - Quiz

Nuclear physics can also be fun! Tickle your brain cells by taking this atomic masses and isotope quiz. If not for the love of physics, try it out just for fun. Many interesting facts are associated with an atom; here, you will find out some. So what are you waiting for? Let's find out how much you can recall from your physics classes during your school days. Take this quiz now!


Questions and Answers
  • 1. 

    Isotopes are atoms of the same element with _________ .

    • A.

      Different atomic numbers

    • B.

      Different atomic masses

    • C.

      Different number of protons

    • D.

      All of the above

    Correct Answer
    B. Different atomic masses
    Explanation
    Isotopes are atoms of the same element with different atomic masses. Isotopes have the same number of protons and electrons, but they differ in the number of neutrons in their nucleus. This difference in the number of neutrons leads to variations in the atomic mass of isotopes. Therefore, the correct answer is different atomic masses.

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  • 2. 

    An atom has 6 protons and 8 neutrons. What is its atomic mass?

    • A.

      6

    • B.

      8

    • C.

      14

    • D.

      Cannot be deduced from the data provided

    Correct Answer
    C. 14
    Explanation
    The atomic mass of an atom is determined by the sum of its protons and neutrons. In this case, the atom has 6 protons and 8 neutrons, so the atomic mass is 6 + 8 = 14.

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  • 3. 

    Isotopes of an element have _________ .

    • A.

      Same chemical properties but different physical properties

    • B.

      Same chemical properties and same physical properties

    • C.

      Different chemical properties but same physical properties

    • D.

      Different chemical properties and different physical properties

    Correct Answer
    A. Same chemical properties but different physical properties
    Explanation
    Isotopes of an element have the same number of protons, which determines their chemical properties. However, they have a different number of neutrons, which affects their physical properties such as mass and stability. Therefore, isotopes of an element have the same chemical properties but different physical properties.

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  • 4. 

    Which of the following statement(s) is/are correct?

    • A.

      Different atoms of a given element have the same number of protons

    • B.

      Number of neutrons for a given element can vary

    • C.

      Some isotopes are unstable

    • D.

      All of the above

    Correct Answer
    D. All of the above
    Explanation
    The given answer, "All of the above," is correct because it accurately reflects the statements provided. The first statement states that different atoms of a given element have the same number of protons, which is true as the number of protons defines the element. The second statement mentions that the number of neutrons for a given element can vary, which is also true as isotopes of an element have different numbers of neutrons. The third statement states that some isotopes are unstable, which is true as certain isotopes undergo radioactive decay.

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  • 5. 

    Isotopes have ______ .

    • A.

      Equal no. of neutrons

    • B.

      Equal no. of both neutrons and protons

    • C.

      Equal no. of protons

    • D.

      None of the above

    Correct Answer
    C. Equal no. of protons
    Explanation
    Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. Therefore, isotopes do not have an equal number of neutrons or an equal number of both neutrons and protons. The correct answer is that isotopes have an equal number of protons.

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  • 6. 

    The atomic number of an atom is equal to the number of which of these following subatomic particles?

    • A.

      Neutron

    • B.

      Proton

    • C.

      Electron

    • D.

      None of the above

    Correct Answer
    B. Proton
    Explanation
    The atomic number of an atom is equal to the number of protons in the nucleus of the atom. Protons are positively charged subatomic particles that determine the element's identity. Neutrons have no charge, electrons have a negative charge, and neither of them contribute to the atomic number. Therefore, the correct answer is proton.

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  • 7. 

    Isotopes that can emit subatomic particles to reach stability are known as _______ .

    • A.

      Radioisotopes

    • B.

      Isotones

    • C.

      Isobars

    • D.

      Active isotopes

    Correct Answer
    A. Radioisotopes
    Explanation
    Radioisotopes are isotopes that are unstable and can emit subatomic particles, such as alpha particles, beta particles, or gamma rays, in order to reach a more stable state. These emitted particles are a result of the radioactive decay process, which occurs spontaneously. Radioisotopes are commonly used in various fields, including medicine, industry, and research, for purposes such as medical imaging, cancer treatment, and dating archaeological artifacts. Therefore, the correct answer for this question is "Radioisotopes."

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  • 8. 

    What is the isotope of hydrogen with two neutrons called?

    • A.

      Deuterium

    • B.

      Tritium

    • C.

      Protrium

    • D.

      Isotrium

    Correct Answer
    B. Tritium
    Explanation
    Tritium is the isotope of hydrogen with two neutrons. It is a radioactive isotope and has a mass number of 3. Deuterium, on the other hand, is the isotope of hydrogen with one neutron and is stable. Protrium and Isotrium are not valid isotopes of hydrogen and do not exist. Thus, the correct answer is Tritium.

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  • 9. 

    Atomic mass is expressed as a multiple of 1/12th the mass of _________ .

    • A.

      Carbon-13 atom

    • B.

      Carbon-14 atom

    • C.

      Carbon-12 atom

    • D.

      Any isotope of carbon

    Correct Answer
    C. Carbon-12 atom
    Explanation
    Atomic mass is expressed as a multiple of 1/12th the mass of Carbon-12 atom. This is because Carbon-12 atom is chosen as the standard for atomic mass calculations. The atomic mass of an element is determined by comparing it to the mass of Carbon-12 atom, which is assigned a mass of exactly 12 atomic mass units (amu). Therefore, all other atomic masses are expressed relative to Carbon-12 atom.

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  • 10. 

    How many naturally occurring isotopes does hydrogen have?

    • A.

      2

    • B.

      3

    • C.

      1

    • D.

      4

    Correct Answer
    B. 3
    Explanation
    Hydrogen has three naturally occurring isotopes: protium, deuterium, and tritium. Protium is the most common and does not contain any neutrons, deuterium has one neutron, and tritium has two neutrons. These isotopes have different atomic masses but the same atomic number, which is why they are all considered to be hydrogen.

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  • Current Version
  • Apr 13, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 12, 2023
    Quiz Created by
    Austin Ames
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