Each of the three naturally occurring radioactive series start with one of the following isotopes except for which one? A)²³⁸U B)²³⁵U C)²³²Th D)²³⁷Np

Name: Each of the three naturally occurring radioactive series start with one of the following isotopes except for which one? A) 238 U B) 235 U C) 232 Th D) 237 Np
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The naturally occurring radioactive series start with isotopes ²³⁸U, ²³⁵U, and ²³²Th. ²³⁷Np is not a starting isotope for any of these series.

Each of the Three Naturally Occurring Radioactive Series Start with One