This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that we use today. He announced his structure in 1869, but the challenge of ...

Watch this video to find out more information on the periodic table close periodic tableA table which lists all of the chemical elements and arranges them in a way that is useful. It allows us to ...

Tungsten is a metal in group VIB of the periodic table with atomic number 74, an atomic weight of 183.85, and a density of 19.3 Mg/m 3. Its melting point is 3410 C, and it boils at 5930 C. In the ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

The Periodic Table is a well-organized chart that contains all 118 known elements in the universe. These elements are the ...

Add a word to HAM to make the name of a muscle. TUNGSTEN is an element on the periodic table that’s abbreviated as W. Ready to learn the answers to today’s Connections puzzle? I give them all ...

Click on the images below to automatically tweet the element infographics. Download the PDFs to make your own wall displays or education resources. We've also created a range of IYPT-themed, ...

Want to learn more about this centerpiece of chemistry? Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles, and check out ...

These are almost one-quarter of the periodic table and are mainly found in the first four periods. Of these, 11 are essential elements that our bodies need in larger amounts: oxygen, carbon ...