They are all gases.
Helium, neon, and argon are the three lightest members of the noble gases.
The first four are (in order of increasing number / mass: He = Helium, Ne = Neon, Ar = Argon, Kr = Krypton Xe = Xenon and Ra = Radon are the other two noble gases
helium neon argon krypton xenon radon
helium argon krypton xenon radon
Helium, argon, and neon are noble gases with different atomic numbers: helium (2), neon (10), and argon (18). They vary in terms of their densities, boiling points, and chemical reactivity. Neon has the lowest boiling point and argon has the highest atomic weight among the three.
Noble gases
Elements
Helium Neon and Argon The noble gas group contain: helium, neon, argon, krypton, xenon, radon, ununoctium.
Helium and neon do not typically react with iron under normal conditions. Argon is inert and does not chemically react with iron.
Helium and neon are odd elements because they have an odd number of protons in their nucleus. Hydrogen and argon are even elements because they have an even number of protons.
The noble gases group on the periodic table includes helium, neon, argon, krypton, xenon, and radon. These elements are known for their stable and unreactive nature due to having a full outer electron shell.
All of the group 8 (group 0) elements - Helium, Neon, Argon, Krypton, Xenon, Radon