Second Row Elements Differ from Heavier Elements in All of the Following

Multiple Choice

Second row elements differ from heavier elements in all of the following ways except:

A) Atoms of second row elements are smaller.
B) Atoms of second row elements have higher electronegativities.
C) Heavier elements commonly form multiple bonds while second row elements cannot.
D) Heavier elements have electrons in d orbitals while second row elements do not.