Atomic Structure & Periodic Table Test Quiz

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  • 1/10 Questions

    The atom oxygen has a neucleon number of 16 and a proton number of 8. what is the number of neutrons in the oxygen atom?

    • 4
    • 16
    • 8
    • 0
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About This Quiz

This quiz will test your on your fundamental knowledge on the atomic structure. Get ready!
oh, and you will need your periodic table.

Periodic Table Quizzes & Trivia

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  • 2. 

    Carbon-12 and Carbon-14 are _______________.

    • Ions

    • Isotopes

    • Different elements

    • Compounds

    Correct Answer
    A. Isotopes
    Explanation
    Carbon-12 and Carbon-14 are isotopes. Isotopes are atoms of the same element that have different numbers of neutrons in their nuclei. Carbon-12 has 6 neutrons, while Carbon-14 has 8 neutrons. Despite having different numbers of neutrons, both isotopes of carbon have the same number of protons and electrons, which is 6. Isotopes may have slightly different properties due to the varying number of neutrons, but they still belong to the same element.

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  • 3. 

    Hydrogen, deuterium and tritium are all isotopes of hydrogen. They have a different number of _____________.

    • Atoms

    • Neutrons

    • Protons

    • Electrons

    Correct Answer
    A. Neutrons
    Explanation
    Hydrogen, deuterium, and tritium are all isotopes of hydrogen, meaning they have the same number of protons but different numbers of neutrons. Therefore, the correct answer is neutrons.

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  • 4. 

    “Isotopes are elements that have the same number of neutrons and different number of protons.” What is wrong with the previous sentence?

    • Isotopes are elements that have the same number of protons and different number of neutrons.

    • Isotopes are elements that have the same number of protons and different number of electrons.

    • Isotopes are elements that have the same number of neutrons and different number of electrons.

    • Isotopes are elements that have the same number of electrons and different number of protons.

    Correct Answer
    A. Isotopes are elements that have the same number of protons and different number of neutrons.
    Explanation
    The previous sentence incorrectly states that isotopes have the same number of neutrons and different number of protons. In reality, isotopes have the same number of protons (which determines the element) but can have different numbers of neutrons. This is what distinguishes one isotope from another within the same element.

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  • 5. 

    Element P has a nucleon number of 31 and a proton number of 15. Eement S has a nucleon number of 32 and a proton number of 16. The two elements have the same __________.

    • Number of protons

    • Number of neutrons

    • Nucleon number

    • Number of electrons

    Correct Answer
    A. Number of neutrons
    Explanation
    Element P has a nucleon number of 31 and a proton number of 15, which means it has 16 neutrons (31 - 15 = 16). Element S has a nucleon number of 32 and a proton number of 16, which means it also has 16 neutrons (32 - 16 = 16). Therefore, the two elements have the same number of neutrons.

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  • 6. 

    Vanadium, V has a nucleon number of 51 and a proton number of 23. how many electrons does it have?

    • 51

    • 79

    • 28

    • 23

    Correct Answer
    A. 23
    Explanation
    To find the number of electrons in an atom, you can use the fact that in a neutral atom, the number of electrons is equal to the number of protons.
    Since vanadium (V) has a proton number of 23, it also has 23 electrons.

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  • 7. 

    Element X has a nucleon number of 40 and a proton number of 20. Which period in the periodic table is X found in?

    • Period 2

    • Period 1

    • Period 7

    • Period 5

    Correct Answer
    A. Period 2
    Explanation
    The nucleon number of an element is equal to the sum of its protons and neutrons. Since element X has a nucleon number of 40 and a proton number of 20, it means that it has 20 neutrons. In the periodic table, elements are arranged in order of increasing atomic number, which is the same as the proton number. Therefore, element X with a proton number of 20 would be found in period 2, where elements have atomic numbers ranging from 3 to 10.

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  • 8. 

    A beam of particles containing protons, neutrons and electrons is fired through an electric field. Which particle will not bend or deviate?

    • Proton

    • Electron

    • Neutron

    • All of the above

    Correct Answer
    A. Neutron
    Explanation
    Neutrons have no charge, so they are not affected by electric fields. Protons have a positive charge and electrons have a negative charge, so they will experience a force and bend or deviate when passing through an electric field. Therefore, the correct answer is neutron.

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  • 9. 

    Hydrogen has a nucleon number of 1 and a proton number of 1. how many neutrons does deuterium, an isotope of hydrogen, have?

    • 0

    • 3

    • 2

    • 1

    Correct Answer
    A. 1
    Explanation
    Deuterium is an isotope of hydrogen with one proton and one neutron, giving it a nucleon number of 2. Since the question asks for the number of neutrons in deuterium, the correct answer is 1.

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  • 10. 

    How many electrons does an isotope of  Oxygen, nucleon number 16 and proton number 8, have?

    • 8

    • 6

    • 10

    • 2

    Correct Answer
    A. 10
    Explanation
    The nucleon number of an isotope represents the total number of protons and neutrons in its nucleus. In this case, the nucleon number is 16, which means there are 8 protons and 8 neutrons. Since electrons are equal in number to protons in a neutral atom, the isotope of Oxygen with 8 protons will have 8 electrons. However, the question asks for an isotope of Oxygen with 16 nucleons, so it is not referring to the element Oxygen itself. Therefore, the correct answer is 10, as it is an isotope with 8 protons and 8 neutrons, resulting in 10 electrons.

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  • Current Version
  • Feb 25, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 17, 2010
    Quiz Created by
    Felixpiers
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