Elements in group 1 and group 2 are metals. Atoms of group 1 elements have one electron in their outer shell, and atoms of group 2 elements have two electrons in their outer shell. Elements in groups ...

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 ...

The periodic table is like a map that organizes elements based on their atomic structure and properties. It helps scientists and students study and understand the vast variety of elements and how they ...

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 ...

Play this game to learn about lots of different elements in the periodic table. While you're watching, look out for where different elements are found in the periodic table. Mrs Roberts: So, here I ...

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 ...

In 1869, a professor at the University of St. Petersburg, Russian chemist Dmitri Mendeleev (1834–1907), devised a diagram in which he arranged the approximately 60 known chemical elements by order of ...

Does your love of the periodic table extend to tying 200,000 tiny knots? That was the project that Jane Stewart of Surrey, England, undertook last summer. To honor the International Year of the ...

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 ...