Nitrogen (n), oxygen (o), chlorine (cl), neon (ne), and argon (ar) are all elements that occur as a gas at room temperature (20°c). using the periodic table, which pair of gases has the most similar properties? (2 points)

Neon and Argon

Explanation:

Hello,

In this case, one could remember that one way that the periodic table is organized is based on the families, so as long as the neon and the argon are noble gases they have similar properties such as electricity conduction, fluoresce, they are odorless and colorless unlike the other mentioned gases.

Best regards.

You can place it in a larger container (gas always fills the maximum amount of space as it can).

OR

You can heat it.  Gas will expand and build pressure as it expands.

OR

You can reduce the pressure on its current container, and the gas will try its very best to expand the container.