Millions of asteroids are floating in space in the massive expanse between Mars and Jupiter, thousands of which are close enough to our planet to be deemed "near-Earth asteroids." While the majority ...

Elements heavier than uranium don’t exist naturally on Earth. Researchers make these massive elements at the end of the periodic table by smashing existing atoms together in particle accelerators.

Creating mnemonic phrases can help you remember the order of elements, especially for the first 20 elements or specific groups. These phrases are general and are available on other free online sources ...

Last May we added two new elements, Livermorium and Flerovium, to the periodic able after being first synthesized over a decade ago. Adding new elements to the periodic table is rare, not that we have ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...