Atoms, Ions, And Isotopes Quiz

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  • 1/10 Questions

    Atoms and Ions are all the same?

    • True
    • False
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About This Quiz

Test your understanding of the atomic structure with our "Atoms, Ions, and Isotopes Quiz." This quiz is designed to challenge your understanding of these fundamental concepts in chemistry. Learn how atoms form the building blocks of matter, how ions develop charges by gaining or losing electrons, and how isotopes of the same element differ by their neutron counts.

This quiz offers a comprehensive overview of atoms, ions, and isotopes. Covering key topics such as atomic stability, chemical properties, and real-world applications, this quiz will help you solidify your grasp on these critical concepts. Take the quiz now to see how much you know and uncover interesting facts about the invisible particles that make up our world!

Atoms, Ions, And Isotopes Quiz - Quiz

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  • 2. 

    In an atom, the numbers of protons and electrons are...

    • Equal

    • Unequal

    Correct Answer
    A. Equal
    Explanation
    In a neutral atom, the number of protons (positively charged) is equal to the number of electrons (negatively charged). This balance results in no overall electric charge. If an atom has more or fewer electrons than protons, it becomes an ion and gains a charge.

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  • 3. 

    Atoms can obtain full other shell by...

    • Getting rid of a proton

    • Loosing a neutron

    • Loosing or gaining electrons

    Correct Answer
    A. Loosing or gaining electrons
    Explanation
    Atoms can obtain a full outer shell by either losing or gaining electrons. When an atom loses electrons, it becomes positively charged because it now has more protons than electrons. This process is known as ionization. On the other hand, when an atom gains electrons, it becomes negatively charged because it now has more electrons than protons. This process is called electron gain or reduction. By either losing or gaining electrons, atoms can achieve a stable electron configuration and obtain a full outer shell, which makes them more stable and less reactive.

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  • 4. 

    An ion is an atom that has..

    • Gained or lost protons

    • Gained or lost neutrons

    • Gained or lost electrons

    Correct Answer
    A. Gained or lost electrons
    Explanation
    An ion is defined as an atom that has gained or lost electrons, resulting in a net positive or negative charge. If an atom loses electrons, it becomes positively charged (cation). If it gains electrons, it becomes negatively charged (anion). The number of protons and neutrons remains unchanged when forming an ion.

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  • 5. 

    What is the difference between atoms and ions when it comes to the number of neutrons?

    • Ions have one extra neutron

    • Ions have one less neutron

    • There is no difference when it comes to the number of neutrons

    Correct Answer
    A. There is no difference when it comes to the number of neutrons
    Explanation
    Neutrons do not affect whether an atom is an ion or not. Ions are formed when atoms lose or gain electrons, which affects the overall charge but not the number of neutrons. The number of neutrons remains unchanged in the process of forming an ion. Neutrons are neutral particles and do not contribute to the electric charge of an atom or ion.

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  • 6. 

    An atom that has lost electrons is called a/an...

    • Anion

    • Neutron

    • Cation

    • Proton

    Correct Answer
    A. Cation
    Explanation
    When an atom loses electrons, it becomes positively charged due to the excess of protons over electrons. This positively charged ion is called a cation. On the other hand, an anion is formed when an atom gains electrons and becomes negatively charged. Neutrons and protons are subatomic particles found in the nucleus and do not define the charge of ions.

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  • 7. 

    An atom that has gained electrons is a 

    • Cation (positive ion)

    • Anion (negative ion)

    • Neutral ion

    Correct Answer
    A. Anion (negative ion)
    Explanation
    An atom that gains electrons acquires a negative charge because electrons are negatively charged. This type of ion is called an anion. Conversely, an atom that loses electrons becomes a cation, which is positively charged due to the excess of protons over electrons.

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  • 8. 

    In an ion the number of electrons are...

    • The same as the number of protons

    • Not the same as the number of protons

    • The same as the number of neutrons

    • Not the same as the number of neutrons

    Correct Answer
    A. Not the same as the number of protons
    Explanation
    An ion is formed when an atom gains or loses electrons. This means that in an ion, the number of electrons is not equal to the number of protons. If there are more electrons than protons, the ion is negatively charged (anion). If there are fewer electrons than protons, the ion is positively charged (cation).

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  • 9. 

    What makes isotopes different from each other?

    • Atomic number

    • Number of neutrons

    • Number of electrons

    • Number of protons

    Correct Answer
    A. Number of neutrons
    Explanation
    Isotopes of an element have the same number of protons (and thus the same atomic number) but differ in the number of neutrons. This difference in neutron count results in varying atomic masses. For example, Carbon-12 and Carbon-14 are isotopes of carbon, both having 6 protons but with 6 and 8 neutrons, respectively.

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  • 10. 

    Why do atoms gain or lose electrons?

    • To achieve electrical neutrality

    • To become more stable by achieving a full outer shell

    • To change into another element

    • To decrease in size

    Correct Answer
    A. To become more stable by achieving a full outer shell
    Explanation
    Atoms gain or lose electrons to achieve a full outer shell of electrons, which makes them more stable. This concept is based on the "octet rule," where atoms tend to have eight electrons in their valence (outermost) shell, similar to the stable electron configuration of noble gases. Atoms with incomplete outer shells are more reactive and will either lose or gain electrons to attain stability. This does not change them into another element, affect their size significantly, or solely aim for electrical neutrality.

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  • Oct 04, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 16, 2015
    Quiz Created by
    Kyle Pearson
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