Above -268.93 °C, helium is gas. Below -268.93 °C, helium is liquid.
Helium cannot exist as solid.
Under standard conditions of pressure and temperature Helium is a gas.
it is a gas
gas,liquid,solid,hydrogen and helium...
Yes, petroleum freezes solid at a sufficiently low temperature. In fact, there is only one substance which does not have a solid phase, which is helium. Helium exists only as a gas or a liquid. But everything else will freeze if sufficiently cooled.
It has to be pretty cold to be a solid in the first place, -272'C. As it goes above this temperature it will melt to a liquid, but will then vaporise to the gas form we are most familiar with at -269'C.
Gas
it is a solid
it is a gas
Under standard conditions of pressure and temperature Helium is a gas.
it is a gas
Helium is a gas, belonging to noble gases (group 18)
gas,liquid,solid,hydrogen and helium...
No, helium cannot be hammered into sheets. Helium is the only element that cannot be cooled sufficiently to become a solid. It remains liquid at the lowest temperatures we can achieve, and that's very, very close to absolute zero. As helium is a gas or a liquid and never a solid (at least not yet) we don't see it treated as a solid, like being hammered into sheets.
It is a gas.Answer:Helium can be in any state (solid,liquid or gas) depending on its pressure and temperature. At 2.5 MPa:Below -272.20oC it is a solidAbove -268.93oC it is a gasBetween these two temperatures it is a liquid
All material things (except helium ... no solid form known - yet).
Covalent.Every compound can exist as a solid, liquid, or gas, given the right temperature and pressure. This is also true of every element, with the single exception of helium, which has no solid phase, no matter how cold it is. Helium is unique.
Yes, petroleum freezes solid at a sufficiently low temperature. In fact, there is only one substance which does not have a solid phase, which is helium. Helium exists only as a gas or a liquid. But everything else will freeze if sufficiently cooled.