Why can't gold rust?
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Answer:
it is not made of iron
Explanation:
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- "Of all the metals, gold is the least reactive, and it is safe to use in both natural and industrial environments," says one expert.
- Because gold doesn't react with oxygen, it never rusts or tarnishes (one of the most active elements).
- "Gold tarnish is extremely thin, appearing as a darkening of shiny surfaces," according to Corrosion Doctors.
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