Because helium is only about 0.0005% of air ... not enough
to make recovery economically feasible.
because there is such a small percentage of Helium in the air, less than 0.0005% it would be pointless
because baloons can flyyy
It's usually manufactured at chemical plants. It's delivered to businesses in high-pressure cylinders.
It doesn't. But if you swallow helium and hold it in your mouth, your voice sounds mouse-like.
Yes it does. Helium has 2 electrons in the s orbital. A s orbital can hold a maximum of two electrons.
no where
Do you mean helium? Helium is an element, so it's made of .... helium!
It's usually manufactured at chemical plants. It's delivered to businesses in high-pressure cylinders.
because it is a very rare element. and any thing rare is expensive e.g gold
Helium is extracted as a by-product of methane. Because the technology is difficult helium is expensive.
Oil and gas wells.
how much helium can a air balloon hold
It doesn't. But if you swallow helium and hold it in your mouth, your voice sounds mouse-like.
Not normally - but it can be ionized.
It will escape
Yes it does. Helium has 2 electrons in the s orbital. A s orbital can hold a maximum of two electrons.
A person can hold directorship in 15 companies earlier it was 20 companies.
no where
There are several companies that provide music of on hold answering services. You can try Muzak, Map Communications, PCMSI, On Hold Company and Sound-Tele.