If you look at the Periodic Table, Argon's Atomic Mass is forty, and its atomic number is eighteen. So forty minus eighteen = 22 neutrons
22
It is the Noble gas Argon.
Hydrogen
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons
Argon has 22 neutrons.
22
neutrons = 40 - 18 = 22
The most stable isotope of Argon has 22 neutrons (Ar40)
Argon has 18 protons, 18 electrons. The most stable isotope of argon (Ar-40) has 22 neutrons.
It is the Noble gas Argon.
Hydrogen
There are several. However, Chlorine is one. Chlorine-35 has 17 protons, 18 neutrons and 17 electrons in its isotopic atom. However, Chlorine-37 has 17 protons, 20 neutrons and 17 electrons in its isotopic atom.
18 protons and 22 neutrons in the most commonly occurring isotope argon-40. In argon-36 there are 18 neutrons but this isotope is only present in nature at 0.34%
This is a chemical element. You can find the how many electron in a single atom by using a periodic table.
That depends on the isotope, as Argon has three different stable isotopes and many different radioactive isotopes.
Argon-20
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons