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Chemistry 8 Online
OpenStudy (chris215):

Which three groups of the periodic table contain the most elements classified as transition elements? groups 1, 16, and 18 groups 5, 7, and 9 groups 2, 3, and 4 groups 15, 16, and 17

OpenStudy (anonymous):

The second one, I believe.

OpenStudy (chris215):

Thanks!

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