Inside The Atom

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Inside The Atom - Quiz

For a long time in the scientific study of chemistry, it was believed that the atom was the smallest thing in the universe. Over time, however, it was discovered that once opened there was far more to be discovered. What do you know about what can be found inside the atom? Let’s find out.


Questions and Answers
  • 1. 

    What particle is not found in the nucleus?

    • A.

      Proton

    • B.

      Neutron

    • C.

      Electron

    • D.

      Nucleus

    Correct Answer
    C. Electron
    Explanation
    Electrons are not found in the nucleus. They are negatively charged particles that orbit around the nucleus in specific energy levels. Protons and neutrons, on the other hand, are found in the nucleus. Protons have a positive charge, while neutrons have no charge. The nucleus itself is the central part of an atom that contains protons and neutrons. Therefore, the correct answer is electron.

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  • 2. 

    Name the particle that has a positive charge:

    Correct Answer
    proton
    protons
    Explanation
    A proton is a subatomic particle that carries a positive charge. It is found in the nucleus of an atom and is one of the fundamental particles that make up matter. Protons are essential for the stability and structure of atoms, as they determine the atomic number and help to define the element. The term "protons" is also correct, as it refers to multiple individual proton particles.

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  • 3. 

    Which particle is neutral (has no charge)?

    • A.

      Proton

    • B.

      Neutron

    • C.

      Electron

    • D.

      Nucleus

    Correct Answer
    B. Neutron
    Explanation
    A neutron is a subatomic particle that is neutral, meaning it has no charge. Unlike a proton, which has a positive charge, and an electron, which has a negative charge, a neutron has no charge at all. This is because it is made up of three quarks - two down quarks and one up quark - that combine to give it a neutral overall charge. Neutrons are found in the nucleus of an atom along with protons, and their neutral charge helps to stabilize the nucleus.

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  • 4. 

    What is the atomic number of the atom shown?

    • A.

      4

    • B.

      5

    • C.

      6

    • D.

      11

    Correct Answer
    B. 5
    Explanation
    The atomic number of an atom represents the number of protons in its nucleus. In this question, the correct answer is 5, which means that the atom shown has 5 protons in its nucleus.

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  • 5. 

     What is the atomic mass of the atom shown?

    • A.

      4

    • B.

      5

    • C.

      6

    • D.

      11

    Correct Answer
    D. 11
    Explanation
    The atomic mass of an atom is the sum of the number of protons and neutrons in its nucleus. In this case, the atom shown has an atomic mass of 11, which means it has 11 protons and neutrons combined.

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  • 6. 

    Protons and neutrons are found where in an atom?

    Correct Answer
    nucleus
    the nucleus
    Explanation
    The correct answer is "nucleus". Protons and neutrons are found in the nucleus of an atom. The nucleus is the central part of an atom where most of its mass is concentrated. It contains positively charged protons and neutral neutrons. The electrons, which are negatively charged, orbit around the nucleus in specific energy levels.

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  • 7. 

    Where are electrons found in an atom?

    Correct Answer
    electron cloud
    electron clouds
    electronclouds
    Explanation
    Electrons are found in the electron cloud, which is a region surrounding the nucleus of an atom. The electron cloud is a probabilistic model that represents the likelihood of finding an electron in a particular location around the nucleus. It is often depicted as a fuzzy cloud-like structure, as electrons do not have fixed orbits but exist in a state of constant motion within the cloud. The terms "electron clouds" and "electronclouds" are alternative ways of referring to this region where electrons are located.

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  • 8. 

    To find the atomic number of an atom you would:

    • A.

      Count the protons

    • B.

      Count the neutrons

    • C.

      Count the electrons

    • D.

      Count the protons and neutrons

    Correct Answer
    A. Count the protons
    Explanation
    To find the atomic number of an atom, you would count the protons. The atomic number represents the number of protons in an atom's nucleus. Protons have a positive charge and are unique to each element, so counting the protons gives you the atomic number, which is used to identify and classify elements on the periodic table. Counting the neutrons and electrons is not necessary to determine the atomic number.

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  • 9. 

    To find the atomic mass (mass number) of an atom you would:

    • A.

      Count the protons

    • B.

      Count the electrons

    • C.

      Count the neutrons

    • D.

      Count the protons and neutrons

    Correct Answer
    D. Count the protons and neutrons
    Explanation
    To find the atomic mass (mass number) of an atom, you need to count the protons and neutrons. The atomic mass is determined by the sum of these two particles in the nucleus of an atom. Protons carry a positive charge and are responsible for the element's identity, while neutrons have no charge and contribute to the atom's mass. Electrons, on the other hand, are located in the electron cloud surrounding the nucleus and have negligible mass compared to protons and neutrons. Therefore, counting only the protons and neutrons will give you the correct atomic mass of an atom.

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  • 10. 

    Which particle has a negative charge?

    Correct Answer
    electron
    electrons
    Explanation
    Electrons are particles that have a negative charge. They are subatomic particles that orbit around the nucleus of an atom and are responsible for the flow of electricity. Electrons are fundamental building blocks of matter and play a crucial role in chemical reactions and the behavior of atoms.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 22, 2008
    Quiz Created by
    Dbynagle
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