Question

93. The atomic mass of Sodium is 1) 16 u 2) 23 u 3) 46 u 4) 63.5 u​

Answer 1

Answer:

2)The answer will be 23 u.

Answer 2

Answer:

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 .