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Which one of the following scientists began arranging the elements in the periodic table in order of increasing atomic mass?

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Which one of the following scientists began arranging the elements in the periodic table in order of increasing atomic mass? Answer: Dimitri Mendeleev

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This question is part of 📚 General Knowledge within the broader 🌐 Current Affairs & GK subject and appears in the ETEA Educational Testing and Evaluation Agency preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.