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Which of the following correctly identifies the composition of an oxygen atom? A. 8 protons, 8 electrons, and 8 neutrons B. 6 protons, 6 electrons, and 8 neutrons C. 8 protons, 6 electrons, and 7 neutrons D. 6 protons, 6 electrons, and 12 neutrons

Bethany Evans

in Chemistry

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Alexa Spicer on October 13, 2018

The answer is A. The atomic number of oxygen is 8 so it has 8 protons and the same number of electrons to balance the charge, which is neutral. Finally, its atomic mass is around 16 so it has 8 neutrons. Atomic mass is protons + neutrons.


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