Quiz: Atomic Number and Mass Number
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Building on what you've learned about atoms and subatomic particles, let's test your knowledge of atomic number and mass number!
What does the atomic number of an atom represent?
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Which subatomic particles contribute to the mass number?
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Which of the following statements about atomic number and mass number are correct? (Select all that apply)
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The {{blank0}} number determines the identity of an element, and the {{blank1}} number represents the total number of protons and neutrons in its nucleus.
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Match the items on the left with their correct pairs on the right
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An atom has 8 protons and 9 neutrons. What is its mass number?
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An atom has an atomic number of 12 and a mass number of 24. How many neutrons does it have?
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Which of the following statements about isotopes are correct? (Select all that apply)
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Match the items on the left with their correct pairs on the right
An element's atomic number is used to identify its {{blank0}}. For example, an element with 6 protons is {{blank1}}.
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