Can a balloon go up when it is filled with argon?

As John Steele has answered, “No”. Argon gas is heavier (more dense) than air. I made a mistake one time with a similar question. read more

Best Answer: Argon is inert and as safe as Helium. But it's heavier than air, so a balloon filled with it will not float. read more

A normal “decoration” balloon filled with nitrogen doesn’t go up, it will just drift a bit along with the wind. There are two reasons for that: the balloon itself weighs a few grammes; because the balloon is made of latex, in order to inflate the balloon you must apply pressure to it, which increases the density of the Nitrogen. read more

The larger balloons that carry people are called hot air balloons because they are filled with hot air. They are buoyant because the hot air is fractionally lighter than normal air but there is a lot of it. Weather balloons and party balloons both use helium gas. As long as the gas plus the balloon is lighter than the air it displaces, the balloon will float in the air. Helium is normally used in balloons that float. read more