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most neutral atoms of fluorine have an atomic mass of 19 amu and an atomic number of 9 what are these atoms composed of
A. 9 protons, 19 neutrons, and 9 electrons
B. 9 protons, 10 neutrons, and 9 electrons
C. 9 protons, 10 neutrons, and 10 electrons
D. 9 protons, 9 neutrons, and 9 electrons

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zeinb
B is the answer, the isotope of flourine has 9 protons 10 neutrons and 9 electrons.
It’s b- 9protons, 10neutrons, and 9 electrons
Hope it helps

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