Riosmariamhorseyla Riosmariamhorseyla

08-11-2016
Chemistry

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If an atom of sodium has 11 protons, what is its approximate atomic mass?

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AhmatFirz AhmatFirz

12-11-2016

23. The atomic mass is calculated by adding the number of protons and neutrons. However, you cannot guess the number of neutrons. Refer to the periodic table. The atomic mass/mass no of Sodium is 23.

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