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Question

The fundamental basis of the present day periodic table is that elements are


A
Arranged in the order of increasing atomic weights
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B
Grouped according to chemical properties
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C
Arranged in the order of increasing number of neutrons in the atomic nucleus
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D
Arranged in the order of increasing number of protons in the nucleus
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Solution

The correct option is D Arranged in the order of increasing number of protons in the nucleus
According to present day periodic table, elements are arranged in order of increasing atomic number. The atomic number is equal to number of protons in the nucleus of atom.

Chemistry

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