Question

What us ionisation energy????​

Answer 1

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.

The ionization energy of an element increases as one moves across a period in the periodic table because the electrons are held tighter by the higher effective nuclear charge

Answer 2

Answer:

◾️ ionization energy or ionisation energy, denoted Eᵢ, is the minimum amount of energy required to remove the most loosely bound electron, the valence electron, of an isolated neutral gaseous atom or molecule

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