Discover the history, structure, and importance of the periodic table of elements, from Mendeleev’s discovery to modern scientific applications. When you purchase through links on our site, we may ...

One hundred fifty years after Russian chemist Dmitri Mendeleev published his system for neatly arranging the elements, the periodic table it gave birth to hangs in every chemistry classroom in the ...

the number of circles in the electronic configuration of an element is represented in the periodic table as the period number that element is situated in the number of electrons in the outermost shell ...

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 ...

The table is called the periodic table because elements with similar properties occur at regular intervals. The high relative abundance of these tellurium isotopes gives tellurium the greater relative ...

The Periodic Table is integral to science education. In addition to the table itself, we provide learning resources and FAQs for teachers and students. Click to enlarge image. When Dmitri Mendeleev ...

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 ...

In this activity, we describe how the movie Black Panther provides a unique opportunity for students to think critically about the arrangement of the periodic table. The fictional African nation, ...