Humphry Davy and the Voltaic Pile

2019 International Year of the Periodic Table

Historically, the distinction between sodium and potassium was not made easily. Only gradually was it recognized that there was a difference between “plant alkali” (potash, potassium carbonate), obtained from the ashes of plants, and “mineral alkali” (soda, sodium carbonate), found in salt flats and evaporated seawater. Author: James L Marshall, Professor Emeritus, University of North Texas, Denton, Texas

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Category: Feature Series Timeline of Elements

IYPT 2019 Timeline of Elements poster

To celebrate International Year of the Periodic Table (IYPT 2019) as print copy subscribers, you have received a Timeline of Elements poster with this, our last print copy of Chem 13 News magazine. Author: Jean Hein, Chem 13 News Editor, University of Waterloo, Ontario

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Category: Feature Series Timeline of Elements

April 2019 issue

Marbling Easter eggs, a fun themed activity to highlight polarity by Jessica Zwaschka, Spearfish, South Dakota

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Category: Feature From our readers Covers

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Category: Feature