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Mendeleev's Periodic Table and Law

Which group o...

Question

Which group of elements could be placed in Mendeleev's Periodic Table without disturbing the original order?

A

Alkali metals

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B

Alkaline earth metals

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C

Non - metals

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D

Noble gases

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Solution

The correct option is D Noble gases
According to Mendeleevs classification, the properties of elements are the periodic function of their atomic masses and there is a periodic recurrence of elements with similar physical and chemical properties. Noble gas being inert, could be placed in a separate group without disturbing the original order.

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Similar questions

Q. Which group elements of modern periodic table were placed along with alkali metals in Mendeleev table?

Q. Without knowing the electronic configurations of the atoms of elements, Mendeleev still could arrange the elements nearly close to the arrangements in the Modern Periodic Table. How can you appreciate this?

Q. In Mendeleev periodic table few elements that are chemically similar are placed in separate ________.

Q. Consider the following statements:
(a) The discovery of inert gases later on did not disturb Mendeleev's arrangement.
(b) In his classification of element, Mendeleev was guided proportional to two factors.
(c) In the present periodic table, periodicity in the properties of elements is related to the periodicity in their electronic configurations.

Which of the above statement(s) is/are correct?

Mendeleev predicted the existence of which element/elements in the periodic table?

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