Give each student a Periodic Table of Energy Levels activity sheet. This table contains energy level models for the first 20 elements. The electrons are included only for the atoms at the beginning ...

Give each student a copy of the periodic table of the elements, the periodic table of elements 1–20, and the activity sheet. Students will use the periodic table of elements 1–20, along with the ...

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 ...

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.

DOWNLOAD PDF VERSION. 5 Comments. 42 Shares. Not all elements in the periodic table can be combined. Image credit: arleksey/Shutterstock.com. DOWNLOAD PDF VERSION “There’s antimony, ...

A new version of the periodic table of elements has predicted hundreds of highly charged ions that could be used to create the next generation of optical atomic clocks. The periodic table, first ...

A new study lays the groundwork to expand the periodic table with a search for element 120, to be made by slamming electrically charged titanium atoms, or ions, into a californium target.

Every element in the periodic table gives off a certain amount of visible light. It’s this light that makes it easy to tell gold (Au) and silver (Ag) apart.

The first version of Mendeleev’s periodic table, published in 1869, was reportedly completed in just one day. Historians have pieced together what happened during that day.