Getting to know the periodic table
Students will answer questions based on the Science News article "The periodic table turns 150."
Russian chemist Dmitrii Mendeleev (shown around 1880) was the first to publish a periodic table, which put the known elements into a logical order and left room for elements not yet discovered.
Heritage Image Partnership LTD/Alamy Stock Photo
This year marks the 150th anniversary of the periodic table. Use this guide to introduce students to the history and development of the periodic table, to the periodic table as a model and to scientific models more generally. Students will explore patterns in the arrangement of chemical elements on the table and patterns in the reactivity of those elements.