Which of the following electronic configuration of an atom h... — Chemistry | Mockzy | Mockzy

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Which of the following electronic configuration of an atom has the lowest ionization enthalpy?

A

1s2 2s2 2p5

B

1s2 2s2 2p3

C

1s2 2s2 2p6 3s1

D

1s2 2s2 2p6

Which of the following pair of elements belongs to the same period?

Element with atomic number 10 belongs to;

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