Determine the reaction rate, with respect to nitrogen, for the reaction: N2(g) + 3H2(g) → 2NH3(g), between 10s and 50s, based on the following table:

With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals