Question

what is the difference between ionisation enery and electron affinity ?

Answer 1

Heya !!!!
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Ionization potential / energy is the amount if energy released while converting a neutral isolated gaseous atom into positively charged ion by the loss of electrons is called ionization
energy
whereas

Electron affinity is the amount of energy released while converting a neutral isolated gaseous atom into negatively charged ion by the gain of electrons is called electron affinity
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Answer 2

Hey Friend ☺

Ionization energy - Ionization energy of an element is the minimum amount of energy required to remove the most loosely held electron from the outermost shell of an isolated neutral gaseous atom that element in its lowest energy state to produce a cation

Electron affinity - The amount of energy released when an electron is added to an isolated neutral gaseous atom in its lowest energy state to produce an anion is called electron affinity.

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