12
Sodium has 12 neutrons. Chloride ion has 18 neutrons. In a formula unit, NaCl has 30 neutrons.
12 neutrons are in the element sodium.
12 neutrons are in sodium (Na).
12 Neutrons
12
there are 11 neutrons.
12
Sodium has 11 protons, 11 electrons and 12 neutrons.
elecrons - 11 neutrons - 12 protons - 11
there are 11.99 neutrons in an atom of sodium
The number of protons and neutrons is not changed; sodium lose one electron and chlorine gain an electron.
30 or 32 neutrons, because chlorine has two isotopes.