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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The elements with atomic numbers 101 and 104 belong to, respectively,

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Correct option: A

actinoids and group 4

Option A (actinoids and group 4) is correct because elements with atomic numbers 101 (Mendelevium) belongs to the actinoid series, and 104 (Rutherfordium) belongs to group 4.

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