can helium be a liquid?
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At standard pressure, the chemical element helium exists in a liquid form only at the extremely low temperature of −269 °C (about 4 K or −452.2 °F). Its boiling point and critical point depend on which isotope of helium is present: the common isotope helium-4 or the rare isotope helium-3.
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It has been postulated that helium actually exerts a cytotoxic effect on cancer cells. As helium is 50 times less soluble in blood than CO2, a potentially fatal complication is venous gas embolism, although no cases have to date been documented.
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Helium is a colourless, odourless, insipid and non-toxic gas. It's less soluble in water than any other gas. It's the less reactive element and doesn't essentially form chemical compounds. The density and viscosity of helium vapour are very low.
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An overview of the different common grades of helium Each variation will always contain the same grade purity, but it's the impurities, things like argon, carbon dioxide, neon, nitrogen, oxygen, and even water, that will have a different composition.
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Key Points Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles.
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Helium is slightly different than the other noble gas elements. It only has two electrons in its outer shell so its valence electron configuration is 1s2. ... The noble gases are happy with their completely filled valence shells. Because of their uber-high stability, the noble gases are relatively unreactive.
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A single atom of course has no arrangements of other atoms around it, so it cannot be considered a liquid or a solid. One would, most likely, consider it a gas — but remember that 'gas' is a macroscopic term and one may equally consider a single atom as 'just a single atom'.
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matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles.
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Soccer Balls Are Filled with Helium Apparently some people still believe this strange myth, but no, balls used in professional soccer matches are not filled with buoyant helium instead of oxygen.
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Well, anything above uranium is likely to be a solid too. There are only two liquid elements at room temperature and pressure; bromine and mercury. Few gases; noble gases, fluorine, chlorine, oxygen, nitrogen, and hydrogen. The rest are solids.
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According to Wikipedia, “liquid takes the shape of a container” and maintains “almost-fixed volume.” So there you have it. Cats are liquids! However, unlike water, these funny cats do not merely show the properties of liquid – they love to do so.
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Lighter elements such as hydrogen and helium tend to have very low boiling points, and elements with greater atomic mass boil at higher temperatures. The atomic mass affects the forces between atoms, which in turn determine boiling points.
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Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles.
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Amazingly almost every element can exist as a solid, a liquid, and a gas - it all depends on the temperature. Mercury, for example, is generally found as a liquid but at -40 degrees Celsius it freezes and turns into a solid. And Mercury vapor (gas) is found in some particles of light.
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You need to lose some energy from your very excited gas atoms. The easy answer is to lower the surrounding temperature. When the temperature drops, energy will be transferred out of your gas atoms into the colder environment. When you reach the temperature of the condensation point, you become a liquid.
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The two carbons on the hydrocarbon molecules each have triple or double bonds, and hydrogens cannot saturate them. This makes the entire molecular structure weaker, so the substance stays liquid at room temperature.
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In liquid phase the atoms are somewhat closely packed whereas the atoms are very loosely packed in gas phase. Liquids cannot be compressed while gas can be compressed. Liquids have definite volume but gases do not have definite volume. ... Liquids flow from higher level to lower level but gases flow in random direction.