A watch's luminous glow is due to zinc sulfide paint that is energized by beta particles given off by tritium, the radioactive hydrogen isotope H, which has a half life of 12 3 years This glow has about 1 25 of its initial brightness Part A How many years old is the watch O 28 yr O 42 yr O 57 yr O...

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A watchs luminous glow is due to zinc sulfide paint that is energized by beta particles given off by tritium, the radioactiv

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Chemistry

ISBN: 978-0077274313

10th edition

Authors: Raymond Chang

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Posted Date: Jul 20, 2021 12:57 PM

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