23.
Sodium (Na) has 11 electrons (it's atomic number) and so must have 11 protons, add in a neutron for good measure and we get 23.
The atomic weight (not mass) of sodium is 22,989 769 28(2).
Look at a Periodic Table.
the atomic mass
The atomic mass of sodium is approximately 23 g/mol.
Sodium's atomic mass is 22.98977
Sodium's atomic mass is 22.99 atomic mass units (amu).
The atomic mass of sodium is 22.989768 a.m.u.
The Relative Atomic Mass of Sodium is 23.
Sodium is a meta element. Atomic mass of it is 23.
Sodium is a metal element. Atomic mass of it is 22.99.
The atomic mass of sodium is approximately 23 grams per mole.
Sodium is a meta element. Atomic mass of it is 23.
Sodium is a meta element. Atomic mass of it is 23.