Question

➡️ Give & explain factors affecting Ionisation Potential ??​

Answer 1

Explanation:

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Factors affecting Ionisation potential.

• Effective nuclear charge: The greater the effective charge on the nucleus of an atom, the more difficult it would be to remove an electron from the atom because electrostatic force of attraction between the nucleus and the outermost electron increases.

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Answer 2

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Factors Affecting

Ionisation Potential :-

✍️ Atomic radius : The values of ionisation potential of an element - decreases as its atomic radius increases.

✍️ Effective nuclear charge : The greater the effective nuclear charge on the nucleus of an atom, the more difficult it would be to remove an electron from the atom.

✍️ Penetration effect of orbitals : The order of energy required to remove electron from s, p, d & f-orbitals of a shell is s>p>d>f , because the distance of the electron from the nucleus increases.

✍️ Shielding or Screening effect : The shielding or screening effect increases if the number of electrons in the inner shells between the nucleus & the outermost electrons increases. The value of Ionisation energy decreases with increase in shielding effect.

✍️ Stability of half-filled & fully-filled orbitals : According to Hund's rule the stability of half filled & completely filled degenerate orbitals is comparatively high. So comparatively more energy is required to separate the electron from such atoms.

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