The basis of keeping the elements in the group of a periodic table is

1.	The basis of keeping the elements in the group of a periodic table is [RPET 1999]
A.	Ionisation potential
B.	Electronegativity
C.	Electron affinity
D.	Number of electrons in the valence shell
Answer» E.

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The basis of keeping the elements in the group of a periodic table is [RPET 1999]

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