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OpenStudy (anonymous):
why is argon used in a light bulb? using the terms of the electronic structure of an argon atom.
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OpenStudy (anonymous):
Argon is a "noble gas" - it is in group 8 on the periodic table. It has a full valent (outer) shell of electrons, meaning it is unreactive. This is useful in a lightbulb, because it means it will not react with the filament even under such intense heat, thus protecting the filament and making it last longer.
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