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Question: Answered & Verified by Expert
Define ionisation enthalpy. Discuss the factors affecting ionisation enthalpy of the elements and its trends in the periodic table.
ChemistryClassification of Elements and Periodicity in PropertiesNEET
Options:
  • A Ionization enthalpy is the energy required to remove an electron from an atom. Factors affecting it include atomic size and effective nuclear charge.
  • B Ionisation enthalpy is the energy released when an electron is added to an atom. Factors affecting it include atomic size and effective nuclear charge.
  • C Ionization enthalpy is the energy required to add an electron to an atom. Factors affecting it include atomic size and effective nuclear charge.
  • D Ionization enthalpy is the energy released when an atom gains a proton. Factors affecting it include atomic size and effective nuclear charge.
Solution:
1937 Upvotes Verified Answer
The correct answer is: Ionization enthalpy is the energy required to remove an electron from an atom. Factors affecting it include atomic size and effective nuclear charge.
Correct Option is : (A)
Ionization enthalpy is the energy required to remove an electron from an atom. Factors affecting it include atomic size and effective nuclear charge.

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