The periodic table of the chemical elements is a tabular method of displaying the chemical elements, first devised in 1869 by the Russian chemist Dimitri Mendeleev. Mendeleev intended the table to ...

Periodic Table Trends Activity Download, print, and cut the cards you need to do this activity. Then watch the instructional video (in English or en Español) to learn how to play. Youtube ID: ...

The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, ...

Since Mendeleev's time, scientists have discovered new elements, expanding the periodic table. The most recent additions include nihonium, moscovium, tennessine, and oganesson, which were officially ...

There are 17 rare earth elements on the periodic table, but a better name for them would be the "troublesome earths." Here's why. When you purchase through links on our site, we may earn an ...

An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest for more accurate optical atomic clocks ...

Streaming is up; TV is down. Those contrasting trends were behind the two biggest corporate deals in the media and entertainment space unveiled in 2024: Skydance Media’s coming takeover of ...

This 12-year-old memorized the periodic table at age 2. He’s heading to NYU after finishing high school in just 2 years By Ashley R. Williams , CNN ...

It is, of course, a pullout of the periodic table. The grid, familiar to all schoolchildren, orders all the known elements into rows and columns according to their properties.