Designed to engage children with a unique periodic table decoding challenge, this worksheet encourages them to solve puzzles using atomic numbers to spell out fall-themed words. Whether you ...

The periodic table shows all the atoms that everything in the known universe is made from. It’s kind of like the alphabet in which only 26 letters, in different combinations, make up many thousands of ...

In other words, it contains elements not on the periodic table at all. These elements would be stable around atomic number 164, which is far denser that Osmium, the densest known naturally ...

Here's your guide to pop culture's periodic table, featuring fictional metals from 'Game of Thrones,' 'Black Panther,' 'The Lord of the Rings,' and more.

The periodic table is in the opposite corner above a bench with a microscope (second image). Once you have both, you can start to piece together the answer.

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 ...