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the first attempt of classification of elements were made by. A.Mayer B.newland C.dobereiner D.Mendeleev ​
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the first attempt of classification of elements were made by. A.Mayer B.newland C.dobereiner D.Mendeleev ​

User MitchBroadhead
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Answer:

the answer is C (dobereiner)

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I'm sure

User AhmedMaher
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