Question

(d) What is the major source of He?​

Answer 1

Answer:

in natural gas,containing 7%of Helium.

Answer 2

Natural gas is the major source of helium.

Explanation:

• Natural gas contain 7 percent of helium.
• Natural gas is the terrestrial source of helium.
• Helium is derived from greek word helios it means sun.
• Helium gas is colourless and odourless.
• Helium gas totally unreactive.
• In the universe after hydrogen helium is the second most abundant element.
• ³He and $He^{4}$ are the isotopes of helium.
• It is the non toxic element.
• Radioactive decay is also a source of helium.
• Major commercial source of helium is natural gas.
• It is non renewable natural gas.

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