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).
Seaborgium-263 has 157 neutrons.
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
Iron has 26 electrons; the number of neutrons is different for each isotope (number of neutrons = mass number - 26).