Sodium's atomic number is 11. What does this tell you about an atom of sodium?

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Chemistry

Eric Brennan

18 October, 22:57

Sodium's atomic number is 11. What does this tell you about an atom of sodium?

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Dayami · Answer 1

This tells us that an atom of sodium contains 11 electrons which is balanced by 11 protons. The atomic mass of the atom is then the sum of the protons and neutrons. If you know the atomic mass of sodium, you can subtract 11 (protons) to get the number of neutrons.