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PART - 1 CH - 3 Classification of Elements and Periodicity in Properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryPART - 1 CH - 3 Classification of Elements and Periodicity in Properties1 Mark
Question
How many inner transition elements are known?
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Answer

Inner-transition elements are 28. (14 lanthanoids and 14 actinoids)

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