The news broke that a railroad car, loaded with pure sodium, had just derailed and was spilling its contents. A television reporter called me for an explanation of why firefighters were not allowed to ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. When you see the periodic table, what comes to mind? The pieces on a ...

This complete lesson explores the periodic table’s structure with engaging slides on periods and groups. Students learn about key element groups—alkali metals, alkaline earth metals, halogens, noble ...

-What are the main properties of alkali metals? - How do alkali metals react with water? - Why do alkali metals have different reactivities? - How can displacement reactions be used to work out the ...

The periodic table of the elements, principally created by the Russian chemist, Dmitry Mendeleev (1834-1907), celebrated its 150th anniversary last year. It would be hard to overstate its importance ...

When it comes to the discovery of elements on the periodic table, you can divide the world into two parts—Ytterby, and everywhere else. Ytterby ("itt-ter-bee") is a village on a speck of an island ...

What happens when an element refuses to behave the way scientists expect it to? The periodic table is more than a chart of ...

When you see the periodic table, what comes to mind? The pieces on a scrabble board? Maybe you think about your high school chemistry class. Maybe you think of the colorful table plastered on the wall ...