Chemistry Quiz: Trivia Questions On Atoms

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Chemistry Quiz: Trivia Questions On Atoms - Quiz

This is about atoms. Pick the letter you think is correct.


Questions and Answers
  • 1. 

    Protons are

    • A. 

      Are negatively charged

    • B. 

      Orbit the nucleus

    • C. 

      Are positively charged

    • D. 

      1/2000 amu

    Correct Answer
    C. Are positively charged
    Explanation
    Protons are positively charged particles found in the nucleus of an atom. They have a mass of approximately 1/2000 amu.

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  • 2. 

    Electrons are 

    • A. 

      Orbit the nucleus and negatively charged

    • B. 

      Are positively charged and make up the nucleus

    • C. 

      Take up most of the mass in the atom

    • D. 

      Are the same as the atomic number

    Correct Answer
    A. Orbit the nucleus and negatively charged
    Explanation
    Electrons are subatomic particles that revolve around the nucleus of an atom in specific energy levels or orbits. They carry a negative charge and are responsible for the majority of an atom's volume. The statement accurately describes the behavior and charge of electrons in an atom.

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  • 3. 

    The nucleus is

    • A. 

      Is made up of protons and neutrons

    • B. 

      Orbits the center proton

    • C. 

      Is the coldest point in the atom

    • D. 

      Surrounds the atom

    Correct Answer
    A. Is made up of protons and neutrons
    Explanation
    The nucleus makes up most of the mass and is made up of protons and neutrons.

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  • 4. 

    The atomic number

    • A. 

      Tells what can and what cannot move in an atom

    • B. 

      Orbits the center proton

    • C. 

      States how many spoolas are in the nucleus

    • D. 

      Is the same as the amount of protons

    Correct Answer
    D. Is the same as the amount of protons
    Explanation
    The atomic number of an atom refers to the number of protons in its nucleus. Protons are positively charged particles and are one of the fundamental components of an atom. The atomic number determines the element to which the atom belongs since each element has a unique number of protons. Therefore, the statement "the atomic number is the same as the amount of protons" is correct. It is important to note that the atomic number does not determine what can or cannot move in an atom, nor does it refer to the orbits of electrons or the number of spoolas in the nucleus.

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  • 5. 

    AMU stands for 

    • A. 

      Absolute Mass Unit

    • B. 

      Atomic Making Unit

    • C. 

      Atomic Mass Unit

    • D. 

      Abraham's Mass Unit

    Correct Answer
    C. Atomic Mass Unit
    Explanation
    AMU stands for Atomic Mass Unit. This unit is used to measure the mass of atoms and molecules. It is defined as 1/12th the mass of a carbon-12 atom. The atomic mass unit is commonly used in chemistry and physics to express the relative masses of atoms and molecules.

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  • 6. 

    If the atomic number is 9, the number of protons is

    • A. 

      8

    • B. 

      9

    • C. 

      1

    • D. 

      12

    Correct Answer
    B. 9
    Explanation
    The atomic number represents the number of protons in an atom. Therefore, if the atomic number is 9, it means that there are 9 protons in the atom.

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  • 7. 

    If Uranium's atomic number is is 92 and it has 10 neutrons, how many protons does it have?

    • A. 

      92

    • B. 

      86

    • C. 

      82

    • D. 

      102

    Correct Answer
    A. 92
    Explanation
    Uranium's atomic number represents the number of protons in its nucleus. Since the question states that Uranium's atomic number is 92, it means that Uranium has 92 protons. The number of neutrons is not relevant to determining the number of protons in an atom.

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  • 8. 

    If Aluminum has an atomic number of 13 and has 14 protons, what is its mass?

    • A. 

      25

    • B. 

      1

    • C. 

      32

    • D. 

      27

    Correct Answer
    D. 27
    Explanation
    The atomic number of an element represents the number of protons in its nucleus. In this case, aluminum has an atomic number of 13, indicating that it has 13 protons. The given statement that aluminum has 14 protons contradicts this information, so it is incorrect. The correct answer is 27, which is not explained by the given statement.

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