Question

which element from the following has highest ionisation energy
I,E,Li,Ne,N,O​

Answer 1

Answer:

answer is He,Ar

I hope it is helpful to you

Answer 2

Answer:

Ne> O> N> Li> I

Explanation:

The ionization energy is the energy required to remove an electron from its orbital around an atom to a point where it is no longer associated with that atom.

Since, The ionization energy of an element increases as one moves across a period (left to right) in the periodic table because the electrons are held tighter by the higher effective nuclear charge. (harder to remove)

And, 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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