Using the periodic table in Figure 7-1, all of the following elements belong to the main group elements EXCEPT: a. hydrogen
b. radium
c. aluminum
d. iron

Acontainer holds 35.8 moles of gas under 10.0 atm of pressure at 70.0 c. what is the volume of the container?

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Label a-f based on the table using c for concentrated and d for dilute