Is helium gas an element a compound a heterogeneous mixture or a homogeneous mixture?
Explanation: An element is a pure substance as well, because if we fill up a balloon with just helium gas, it will only contain helium atoms. On the periodic table of elements, helium is element number 2 , and so that should tell you that it’s an element of course…
Is helium gas substance or mixture?
Because if we fill a balloon with just helium gas, it will only contain helium atoms, an element is also a pure substance. Helium is element number 2 on the periodic table, which should inform you that it is, of course, an element. Note: Pure substances and mixes are the two types of stuff that may be classified.
Is helium in a balloon a homogeneous or heterogeneous mixture?
Similarly, if the material is a mixture, further classify it as homogeneous or heterogeneous in the right column….Material.
| Material | Pure Substance or Mixture | Element, Compound, Homogeneous, Heterogeneous |
|---|---|---|
| Pacific Ocean | Mixture | Heterogeneous |
| air inside a balloon | Mixture | Homogeneous |
Why is helium gas a element and not a compound?
Helium has a complete shell of electrons, and in this form the atom does not readily accept any extra electrons nor join with anything to make covalent compounds.
Is helium a molecule or element?
Helium is a chemical element. Its official symbol is He, and its atomic number is 2, which means it has two protons in its nucleus.
Is the hydrogen gas homogeneous or heterogeneous?
As we know that the homogeneous mixture is one in which the chemical composition is consistent throughout.
Is balloon filled with helium is example of pure substance?
A balloon filled with helium. A balloon filled with helium is an example of a pure substance as it consists of only one type of molecule i.e. which is evenly distributed.
Does helium form any compounds?
Helium, the most noble of the noble gases, long thought to be completely inert and thus too standoffish to bond with other atoms, recently surprised chemists by forming chemical compounds after all. This is because a helium atom is loath to give up its two electrons, which perfectly fill its only electron shell.