Question

Define ionization enthalpy. Explain the factors which influence it's value.
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Answer 1

Answer:

Size of the atom: The larger the atomic size, smaller is the value of ionisation enthalpy. ... (iii) Nuclear charge: As the nuclear charge increases among atoms having same number of energy shells, the ionisation enthalpy increases because the force of attraction towards nucleus increases.

Explanation:

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Answer 2

Explanation:

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(i) Size of the atom: The larger the atomic size, smaller is the value of ionisation enthalpy. ... (iii) Nuclear charge: As the nuclear charge increases among atoms having same number of energy shells, the ionisation enthalpy increases because the force of attraction towards nucleus increases.