Helium molecules have a lower molecular weight than air. This is why balloons filled with Helium will float in the air.
Apex:element
Helium balloon has helium gas
element
element
Helium is used in balloons because it has small atoms and it has a low density.
If you want the balloons to float, you would probably use helium.
Helium is used in blimps and balloons. It is the second lightest element to hydrogen, which is not used because it is highly flammable.
helium, hydrogen, nitrous oxide, oxygen
element
Helium is used in balloons because it has small atoms and it has a low density.
If you want the balloons to float, you would probably use helium.
helium
Helium is used in blimps and balloons. It is the second lightest element to hydrogen, which is not used because it is highly flammable.
Yes, party balloons that float are filled with helium. Helium is used because it is lighter than air, causing the balloon to float upwards, but safer than the alternative hydrogen, which is explosive.
helium, hydrogen, nitrous oxide, oxygen
Deep sea divers breath helium and oxygen, helium is also used to inflate party balloons and airship blimps.
no where
One could get a balloon delivery at your local birthday/party shop, this service is quite common and should be available if you live in the united States/Canada.
Any gas- but if you want them to SAFELY float, use helium.
This depends on the types of balloons desired. Most American super markets will carry mylar helium filled balloons that can be appropriate. However if one desires a themed balloon party supply shops such as Party City will carry them, and fill them with helium for little to no charge. "Gag gift" stores such as Spencer's gifts may also be a good choice for a more humorous outtake.