Helium (He), neon (Ne) and argon (Ar) are all colorless, odorless gases with low chemical reactivity. Based on the periodic table, which other element would also have those same properties?

A.
chlorine (Cl)
B.
carbon (C)
C.
xenon (Xe)
D.
selenium (Se)

1 answer

The other element that would also have properties similar to helium (He), neon (Ne), and argon (Ar) is C. xenon (Xe).

Xenon is a noble gas, like helium, neon, and argon, and it is colorless, odorless, and has low chemical reactivity. The other options (chlorine, carbon, and selenium) do not share these characteristics, as they are not noble gases and have different reactivity profiles.