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muminat
3 years ago
13

Is helium a homogeneous or heterogeneous mixture or compound or element?

Chemistry
1 answer:
sattari [20]3 years ago
8 0
Helium is a chemical ELEMENT of the family of noble gases. Its chemical symbol is 'He' which has an atomic number of 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Although it doesn't really react under normal conditions, it is the second most abundant element in the universe.

Elements are pure substances that cannot be broken down any further.
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<h3>What is the mass percent?</h3>

The concentration of a substance can be expressed in mass percent. This refers to the percentage of the solute that is contained in the solution.

Thus we can write;

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Learn more about mass percent:brainly.com/question/5394922

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