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the 127.6 stands for the relative Atomic Mass, which is the number of protons and neutrons in tellurium. the number down the bottom indicates the atomic number which for tellurium is 52 so that means there are 52 protons and 127.6 subtract 52 = 75.6 so there are 75.6 neutrons :)

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16y ago
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Q: The 127.6 at the bottom of Tellurium in the periodic table stands for?
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