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 ...

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 ...

Trends on the Periodic Table: Students learn to describe the pattern in atomic number, atomic mass, atomic radius, ionization energy, and electron affinity as they look across a period and down a ...

This lesson utilizes an adaptation of the board game Periodic: A Game of the Elements to help students better understand general periodic trends. This adaptation was created for use during one ...

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: ...

Each element is assigned a mystery letter (for example, hydrogen might be “Q”). Students have to use periodic table trends and element properties to determine which letter represents each element.