Atomic mass of Sodium atom

22.98977 amu

23

To find the atomic mass of a sodium atom, you can refer to the periodic table of elements. The atomic mass of an element is usually listed below the symbol for that element.

In the case of sodium, its symbol is Na. If you look up sodium on the periodic table, you will find that its atomic mass is approximately 22.99 atomic mass units (amu).

This represents the average atomic mass of sodium, taking into account the different isotopes of sodium that exist. Isotopes are atoms of the same element that have the same number of protons but different numbers of neutrons. Sodium has several isotopes, but the most common isotope, sodium-23, accounts for the majority of its atomic mass.