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An element has a mass number of 9 and 5 neutrons. What element is it?

User Ylcnky
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Answer:

Fluorine

Fluorine is the element in question, as its atomic number is 9 . You would name this particular isotope using the mass number. It would be called fluorine-19.

User Jake Smith
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Answer:

Fluorine

Fluorine is the element in question, as its atomic number is 9 . You would name this particular isotope using the mass number. It would be called fluorine-19.

Step-by-step explanation:

User Richard Gale
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