NEET Chemistry Ionization Energy MCQ Question
Which of the following combinations correctly describes the properties of ionization energy?
Ionization energy is always positive; it increases across a period.
Ionization energy decreases down a group; it is always negative.
Ionization energy is influenced by nuclear charge; it decreases across a period.
Ionization energy is the energy required to remove a core electron; it is less for cations than for neutral atoms.
Correct Answer
Detailed Explanation
Ionization energy is defined as the energy required to remove an electron from a gaseous atom, and it is always a positive value. Additionally, ionization energy generally increases across a period due to increased nuclear charge affecting the valence electrons more effectively.
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