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Sodium's atomic number is 11. What does this tell you about an atom of sodium? A. It contains 11 neutrons. B. It has 11 protons to lose in ionic bonds. C. It contains 11 protons. D. Its atomic mass is
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Sodium's atomic number is 11. What does this tell you about an atom of sodium?

A. It contains 11 neutrons.
B. It has 11 protons to lose in ionic bonds.
C. It contains 11 protons.
D. Its atomic mass is double this amount

User Ffrosch
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C: It contains 11 protons. Atomic number is like another name for protons. 
User TOBlender
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