The collision of two neutron stars, seen in an artist’s rendering, created both gravitational waves and gamma rays. Researchers used those signals to locate the event with optical telescopes. For the first time, scientists have caught two neutron stars in the act of colliding, revealing that these strange smashups are the source of heavy elements such as gold and platinum. Continue reading
Concept attainment exercises often use verbal or written forms of thought. The attached student exercise uses visual imagery to teach the concepts of Elements, Compounds and Mixtures at the atomic and molecular level. Continue reading
Hank gives us a tour of the most important table ever, including the life story of the obsessive man who championed it, Dmitri Mendeleev. Continue reading
Did you know that gold is extraterrestrial? Instead of arising from our planet’s rocky crust, it was actually cooked up in space and is present on Earth because of cataclysmic stellar explosions called supernovae. Continue reading
The contest is to design an elemental tile for each of the four newly named elements, nihonium (Nh), moscovium (Mc), tennessine (Ts) and oganesson (Og). The top entries will be featured in the upcoming issues of Chem 13 News and will be chosen based on creativity, research and artistic expression. The final winners will be decided by a readers vote.
For more information consult U of W’s New Elements Content link below
Source: New Elements Contest | Chemistry
Four elements have been added to the periodic table this year, completing the seventh row. However, these new elements are not naturally occurring. Scientists had to create them and overcome a number of challenges to do so.
An interactive Periodic Table? Yep! This video Ted-Ed Lesson is about every element on the periodic table. Thanks to Jelena of the STAO Curriculum Committee for this cool resource!