Which of the following pair has elements containing same number of electrons in the outermost orbit [Kurukshetra CEE 1998; AFMC 2000]

Which of the following pair has elements containing same number of ele

1.	Which of the following pair has elements containing same number of electrons in the outermost orbit [Kurukshetra CEE 1998; AFMC 2000]
A.	\[N\], \[O\]
B.	\[Na\], \[Ca\]
C.	\[As\], \[Bi\]
D.	\[Pb\], \[Sb\]
Answer» D. \[Pb\], \[Sb\]

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Which of the following pair has elements containing same number of electrons in the outermost orbit [Kurukshetra CEE 1998; AFMC 2000]

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