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Chemistry, 23.07.2019 07:20 zhellyyyyy
14 what is the atomic number of the first element to start filling an "f" sub-level? a. 21 b. 58 c. 72 d. 92
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14 what is the atomic number of the first element to start filling an "f" sub-level? a. 21 b. 58 c...
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