Yes, it is but I can't recall why but mark my words it is stable
argon
No, it is not.
Argon is a stable, inert gas and does not react with other elements. Calcium is a reactive metal, particularly with water and acids, but it forms stable compounds like calcium oxide and calcium carbonate.
neutrons = 22 (for the most stable isotope of argon, Ar-40)
Argon is stable. It is a noble gas and has a full outer electron shell, making it unreactive and chemically stable under normal conditions.
The centre of argon consists of the nucleus of argon with 18 protons. Also there will be 22 neutrons in the nucleus for the most stable isotope of argon.
Argon does not readily form stable compounds under normal conditions, including argon oxide.
Both neon and argon are stable because they have completely filled orbitals.
Argon has three naturally occurring isotopes: argon-36, argon-38, and argon-40. Argon-40 is the most abundant isotope, making up about 99.6% of natural argon. Argon-40 is particularly important for dating rocks and minerals using the potassium-argon dating method.
All naturally occurring isotopes of argon are stable against radioactive decay at any temperature whatever, and argon is also chemically stable in the absence of fluorine or some other very strong oxidizing agent.
Yes, it is but I can't recall why but mark my words it is stable
Argon is a noble gas, and very non-reactive. Argon fluorohydride, HArF has been synthesized, but is only stable at very low temperatures.