Problem: Which of the following elements would be expected to have the highest first ionization energy?A) HydrogenB) NitrogenC) CarbonD) OxygenE) Neon

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Ionization energy is the energy required to remove an electron from a gaseous atom or ion.

We are asked which of the following elements would be expected to have the highest first ionization energy.


Ionization energy (I. E.) is the energy required to remove an electron from a gaseous atom or ion.

First I.E. corresponds to removing thfirst valence electron from a neutral atom

 Second I.E. refers to removing a second electron

 Third I.E. refers to removing the third electron


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Problem Details

Which of the following elements would be expected to have the highest first ionization energy?

A) Hydrogen

B) Nitrogen

C) Carbon

D) Oxygen

E) Neon