Why is the atomic mass of the sodium atom 23 amu?

1 Answer
anor277
Dec 20, 2017

The atomic mass of sodium is defined by the number of massive nuclear particles....

Explanation:

And by DEFINITION, sodium has 11 protons, massive, charged, nuclear particles, the which number defines the element as sodium, i.e. Z=11, and most nuclei contain 12 neutrons, massive neutral, nuclear particles.

And so we gets the isotope 23Na....which is 100% abundant to a first approximation....How many electrons does a NEUTRAL sodium atom contain?

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