Periodic trends like atomic radius and ionization energy aren’t just facts to memorize—they’re patterns that reveal the hidden structure of the periodic table. Understanding these patterns helps ...

Understanding how a small, gas-phase molecule containing an actinide atom reacts with other molecules helps us better understand the chemistry of heavy elements. These elements are often available in ...

Why it matters: The periodic table organizes elements by atomic number and properties, making it a powerful tool for predicting reactivity and bonding tendencies. Learning made easier: Interactive ...

This lesson utilizes an adaptation of the board game Periodic: A Game of the Elements to help students better understand both general periodic trends and the law of conservation of energy. This ...

Kids these days, they have it so easy. Back in the old days, we learned our elements the hard way, by listening to “The Elements” by Tom Lehrer over and over until the vinyl wore out on the LP. Now, ...

What’s in our food? Believe it or not, we still don’t know. We don’t have reliable indexes of the biomolecules in an overwhelming majority of what we eat, a team of global scientists say—which is ...

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869. In celebration, the United Nations Educational, Scientific, and Cultural ...