They are inert gases.
They have the same mass.
It is a gas.
Argon is rare.
Air is about 1% argon.
There are no common compounds of argon. The only known compound is argon fluorohydride but that is hardly common. Also, argonium (argon hydride) molecules have been identified in the Crab nebula, but that can hardly be described as common.
Argon is described as a colourless, odourless, noble gas.
argon is 1% of air so its pretty coomon i wouldn't say that argon is a goopd source of percentage of air because as you can see argon is a metal and an element so its probably not common
Helium, argon, krypton, xenon, and radon are noble gases like neon. They are colorless, odorless, and have low reactivity. Neon is most similar to argon in terms of properties and behavior.
Argon-40 is the most common isotope of argon, making up about 99.6% of natural argon. It is formed by the radioactive decay of potassium-40 in rocks.
Argon makes up about 1% of our atmosphere, which means there is A LOT of it.
Argon-40, potassium-40, and calcium-40 all have 40 protons and electrons in their atoms, but they have different numbers of neutrons. They are all stable isotopes, although potassium-40 is radioactive and undergoes decay to form argon-40.
Atoms argon-40, potassium-40, and calcium-40 all have 40 protons, but differ in the number of neutrons in their nuclei. They are all stable isotopes, with no natural radioactivity.