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Cover Making the Transition to University Chemistry

Group 2  

This chapter examines the group for alkaline earth metals, also referred to as Group 2 or Group II. The elements in Group 2 are all metals with low electronegativities. Beryllium and radium are the focus across the chapter as they have been less researched due to their toxic compounds or radioactive elements. The physical properties of the Group 2 elements include the increasing atomic radius and ionic radius and decreasing ionization energy and sulfate solubility. Group 2 showcases increasing reactivity with water, acids, and hydroxide solubility. The chapter also looks into the insolubility of barium sulfate and its test for the sulfate ion.