Which of the following statements concerning periodic trends is correct?
A) Metallic character decreases in moving from right to left across a given period in the periodic table.
B) Nonmetallic character increases in moving from top to bottom down a group in the periodic table.
C) Atomic radii tend to decrease from left to right in a period of the periodic table.
D) Atomic radii tend to decrease from top to bottom within a periodic table group.
Correct Answer:
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