An Atom of Fluorine Has an Atomic Number of 9

question 15

Multiple Choice

An atom of fluorine has an atomic number of 9 and a mass number of 19. Which of the following statements is correct?

• A) An atom of fluorine has 9 protons, 9 electrons, and 10 neutrons.
• B) An atom of fluorine has 9 protons, 9 electrons, and 9 neutrons.
• C) An atom of fluorine has 9 protons, 10 electrons, and 9 neutrons.
• D) An atom of fluorine has 10 protons, 9 electrons, and 9 neutrons.
• E) An atom of fluorine has 9 protons, 9 electrons, and 19 neutrons.

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