Argon has an atomic number of 18, which means it has 18 protons. To find the number of neutrons, you would subtract the atomic number from the mass number. If you specifically mean the isotope 18-Argon, it would have a mass number of 18, so it would have 18 - 18 = 0 neutrons.
How many neutrons would it have if it had 11 neutrons? 11.
18 neutrons
117 neutrons.
There is no neutrons in Hitrogen.
It has 20 neutrons.
61 neutrons 47 protons and 47 neutrons
30 neutrons for Na35Cl and 32 neutrons for Na37Cl .
106 neutrons
How many neutrons are in Cesium-130 (Cs)?
45 neutrons
61 neutrons
20 neutrons.