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Among Ce(4f^(1)5d^(1)6s^(2)), Nd(4f^(4)6...

Among `Ce(4f^(1)5d^(1)6s^(2)), Nd(4f^(4)6s^(2)),Eu(4f^(7)6s^(2))" and " Dy(4f^(10)6s^(2))`, the element having highest and lowest 3rd ionization energies, respectively are

A

Nd and Ce

B

Eu and Ce

C

Eu and Dy

D

Dy and Nd

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KVPY PREVIOUS YEAR-SOLVED PAPER 2018-EXAMPLE
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  16. Among Ce(4f^(1)5d^(1)6s^(2)), Nd(4f^(4)6s^(2)),Eu(4f^(7)6s^(2))" and "...

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