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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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nnnnn111 nnnnn111
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3 years ago
Radon-222 has a half-life of 3.8 days. How long would it take for a sample to decay to 18% of its original mass?


▸ 9.4 days

▸ *
Textbook 
Chemistry: An Atoms First Approach

Chemistry: An Atoms First Approach


Edition: 3rd
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mmmmm123mmmmm123
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3 years ago
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