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The Sustainable Development Goals adopted at a UN summit in September 2015 address many of the great challenges that our planet faces this century. Chemistry can make pivotal contributions to help realize these ambitious goals, but first it must undergo major changes in its priorities, approaches and practices.
Carl Wilhelm Scheele had a hand in the discovery of at least six elements and contributed to the early development of chemistry in numerous other ways. Bruce Gibb looks into Scheele's story and considers why he doesn't get the credit that he deserves.
Giovanni Baccolo relates tales of tantalum, an element known, and named, for its inertness, yet one that holds some surprises, such as a naturally occurring nuclear isomer.