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Which inert gas is most commonly used to fill traditional... | QuestionStock

Representative image for question: Which inert gas is most commonly used to fill traditional incandescent light bulbs?

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Which inert gas is most commonly used to fill traditional incandescent light bulbs?

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Which inert gas is most commonly used to fill traditional incandescent light bulbs?

Options:

Argon
Helium
Neon
Krypton

Correct answer: Argon

Explanation: Argon, atomic number 18, is the most common inert fill for incandescent bulbs because it is cheap and nonreactive; manufacturers adopted argon widely in the early 20th century.

Created 2026-03-10T17:33:30.147Z. Updated 2026-03-10T17:33:30.147Z.