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Question
Which group of elements were missing from the Mendeleev’s original periodic table?
Which group of elements were missing from the Mendeleev’s original periodic table?
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Solution
The correct option is A Noble elements
Noble elements were missing from Mendeleev’s original periodic table. Mendeleev's law stated that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.
Noble elements
Noble elements were missing from Mendeleev’s original periodic table. Mendeleev's law stated that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights.
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