Chemistry

Question Analysis
This question involves evaluating basic statements about ionization energy trends. The main focus is on distinguishing correct trends from incorrect ones.

Key Concept Explanation
Key ionization energy trends for main-group elements:
Ionization energy decreases down a group.
Ionization energy increases across a period from left to right.
Noble gases (full valence shells) have the highest ionization energy in their period.
Alkali metals (1 valence electron) have the lowest ionization energy in their period.

Step-by-Step Solution
1. Evaluate each option against the key trends:
A: False (ionization energy decreases down a group).
B: False (ionization energy increases across a period).
C: True (nob...