Mendeleev created the 'zero group' only to fit the noble gases which were discovered towards the end of 19th century.

True

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False

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Solution

The correct option is A True
There was no place reserved for noble gases in Mendeleev’s original periodic table. However, when noble gases such as helium, neon and argon were discovered towards the end of nineteenth century, Mendeleev created the ‘zero’ group without disturbing the original periodic table in which the noble gases were fitted very well.

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