the only nonradioactive isotope of fluorine has 9
The only nonradioactive isotope of fluorine has 9 protons and 10 neutrons.
a. What is its mass number.
b. Write the full symbol of this atom.
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the only nonradioactive isotope of fluorine has 9 protons and 10 neutronsa what is its mass numberb write the full symbol of this
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