Chemistry

Question Analysis
This question involves evaluating the validity of four statements about ionization energy. The main focus is on understanding fundamental properties and trends of ionization energy.

Key Concept Explanation
Ionization energy is the energy required to remove an electron from an atom or ion. It is an endothermic process (positive energy).
Core principles include:
Inverse relationship with atomic radius
Increasing value for successive ionizations
Very high values for elements with full valence shells (stable electron configurations)

Step-by-Step Solution
1. Evaluate each option:
A: True (energy is required to remove an electron, so ΔE > 0).
B: True (larger atoms have valence electrons farther from the nucleus, easier to remove).
C: True (each successive electron is removed from a more positively charged ...