Question

this is how sodium appears in the periodic table. the arrow is pointing to sodiums number of neutrons. chemical symbol atomic mass combined number of electrons and protons.

Explanation:

In the periodic - table entry for sodium, the number 22.99 represents the atomic mass of sodium. The atomic number (number of protons) is 11, the chemical symbol is Na. The number of neutrons can be calculated from the atomic mass and atomic number, and the combined number of electrons and protons is not 22.99.

Answer:

atomic mass