Question

Define ionisation energy. What is its value for a hydrogen atoms?​

Answer 1

Explanation:

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

Answer:

hlo

mate ...

minimum amt of energy required to remove loosely bound electron is called an ionisation energy ...

and value for a hydrogen atoms is see in pic i.e 2.18×10-18 joule