Question

this is how sodium appears in the periodic table.
the arrow is pointing to sodium’s
number of neutrons.
chemical symbol
atomic mass
combined number of electrons and protons.
image of sodiums periodic table entry: 11, na, sodium, 22.99 with an arrow pointing to 22.99

Explanation:

In the periodic table, the number at the bottom of an element's box is the atomic mass (also called atomic weight). The arrow points to 22.99, which is sodium's atomic mass. The number of neutrons is not directly labeled here, the chemical symbol is "Na", and the combined number of electrons and protons would relate to atomic number (11 for sodium), not this value.

Answer:

atomic mass