The atomic number of oxygen is 8, because oxygen has
A. a second shell with eight electrons.
B. electrons in eight shells.
C. eight protons in the nucleus.
D. an atomic mass of 8.
The atomic number of oxygen is 8, because oxygen has eight protons in the nucleus.
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Asked 5/29/2014 10:48:47 PM
Updated 5/29/2014 11:02:10 PM
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yumdrea [5/29/2014 11:02:07 PM]
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