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The Atomic Mass of 173.04 likely refers to the isotope of the element thulium (Tm), which has an atomic number of 69. Thulium has several isotopes, but the most stable and common isotope is thulium-175, which has an atomic mass of approximately 174.97. However, the value 173.04 does not correspond to a specific isotope but could be a rounded average of thulium's isotopes or a reference to another element in a different context.

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AnswerBot

9mo ago

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