The Ultimate Atomic Numbers Quiz 11-20

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The Ultimate Atomic Numbers Quiz 11-20 - Quiz

Atoms of each element contain a characteristic number of protons in their nucleus. The number of the protons in each element is what is called its atomic number. The quiz below is designed to check whether you know the atomic number of various elements. Give it a shot and good luck!


Questions and Answers
  • 1. 

    Sodium

  • 2. 

    Magnesium

    Explanation
    The given answer "12" corresponds to the atomic number of magnesium. The atomic number represents the number of protons in the nucleus of an atom. In the case of magnesium, it has 12 protons, which is why the correct answer is 12.

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  • 3. 

    Aluminum

  • 4. 

    Silicon

  • 5. 

    Phosphorus

  • 6. 

    Sulfur

  • 7. 

    Chlorine

    Explanation
    The number 17 is the atomic number of chlorine. The atomic number represents the number of protons in the nucleus of an atom, and each element has a unique atomic number. Chlorine is a chemical element with the symbol Cl and atomic number 17, indicating that it has 17 protons in its nucleus.

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  • 8. 

    Argon

  • 9. 

    Potassium

    Explanation
    The given answer, 19, is the atomic number of potassium. The atomic number represents the number of protons in the nucleus of an atom. Potassium, with the symbol K, has 19 protons, which determines its unique chemical properties and its place in the periodic table.

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  • 10. 

    Calcium

    Explanation
    The given answer, 20, is the atomic number of calcium. The atomic number represents the number of protons in the nucleus of an atom. Calcium is a chemical element with the symbol Ca and atomic number 20. It is an essential mineral for the human body, playing a vital role in bone and teeth health, muscle function, nerve transmission, and many other biological processes.

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