Why does Molybdenum have a higher ionization energy thanChromium? I would think

Question

Why does Molybdenum have a higher ionization energy thanChromium? I would think that Chromium has a higher energy since it hasless oribtals compared to Molybdenum and thus less shielding. Butevery source that I've looked up on the internet has a higher valuefor the ionization energy for Molybdenum compared to Chromium Why does Molybdenum have a higher ionization energy thanChromium? I would think that Chromium has a higher energy since it hasless oribtals compared to Molybdenum and thus less shielding. Butevery source that I've looked up on the internet has a higher valuefor the ionization energy for Molybdenum compared to Chromium

Explanation / Answer

We Know that :    Chromium and molybednum belongs to same group sothat they have same electronic configuration but theionization energy of Molybednum is greater than Chromium asMolybednum has greater Nuclear size than Chromium.Moreoverd-orbitals have poor screening effect.

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