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Which element has an isotope mass number of 32 and is used as an ecological tracer?

User Vaasha
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Phosphorus is the answer because it is used for tracking a plant's uptake of fertiliser from the roots to the leaves. Phosphorus has a mass number of 30, but has several isotopes such as Phosphorus-32, which can be used to trace phosphorylated molecules.

User Ian Zane
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