What is the density of a rock with a volume of 5 mL and a mass of 13.5 0.37 g/mL

67.5 g/mL

2.7 g/mL

13.5 g/mL

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