Question

why in first ionization energy N>O​

Answer 1

Answer:

Here, you can see that the first ionization energy of oxygen atom is lower.

Explanation:

can you mark me as brainliest

Answer 2

Answer:

Oxygen also has an unexpectedly low ionisation energy, less than that of nitrogen. This is due to an electron being added to an already half full orbital in oxygen, which results in electron electron repulsion, which will lower the ionisation energy.