Considering the trend for ionization energy on the periodic table, which of the following elements has the highest ionization energy?
A
Boron
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B
Oxygen
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C
Nitrogen
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D
Fluorine
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Solution
The correct option is D Fluorine (D) F. Ionisation Energy: This is the energy that is required to remove one electron from the valence shell. Now, as the F has the tendency to gain one electron to complete its octet, hence it has the tendency to gain the electron not lose the electron.
Important point is that F does not form the positive oxidation state, as it is the most electronegative element.