MCQ
The ionization energy will be higher when the electron is removed from
  • $s-$ orbital
  • B
    $p-$ orbital
  • C
    $d-$ orbital
  • D
    $f-$ orbital

Answer

Correct option: A.
$s-$ orbital
a
a.) The ionization energy will be higher when the electron is removed from s orbital.

The ionization energy of the elements increases as one moves up a given group because the electrons are held in lower-energy orbitals, closer to the nucleus and therefore are more tightly bound (harder to remove).

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