The fundamental basis of the present-day Periodic Table is that elemen

1.	The fundamental basis of the present-day Periodic Table is that elements are [JIPMER 1999]
A.	Arranged in the order of increasing atomic weights
B.	Grouped according to chemical properties
C.	Arranged in the order of increasing number of neutrons in the atomic nucleus
D.	Arranged in the order of increasing number of protons in the nucleus
Answer» E.

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The fundamental basis of the present-day Periodic Table is that elements are [JIPMER 1999]

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