23. Chemistry of the Nonmetals
Main Group Elements: Periodic Trends
Multiple Choice
Multiple ChoiceFor Group 5A elements, the ionization energy decreases going down a group because:
A
Their atomic masses increases.
B
The highest number of their valence orbital shell increases.
C
Their metallic character decreases.
D
Their electron affinity increases.
E
The number of neutrons in their nuclei decreases.
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