Question

what is ionization energy ​

Answer 1

Answer:

In physics and chemistry, 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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Answer 2

The energy required to remove an electron from the outermost orbit or shell of neutral gaseous atom is called ionization energy.