It is the Noble gas Argon.
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
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.
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.
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
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