The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance towards it, even though at the time few people were aware of it. Alexandre Béguyer de ...

Ancient Egyptians wrote the letter upside down, creating a symbol that resembled a steer with horns. Learn the surprising ...

1. Periodic Table as Arranged by Mendelejeff attention to the fact that “the eighth element, starting from a given one, is a kind of repetition of the first, like the eighth note of an octave in ...

Browse a list of curated classroom activities by the American Association of Chemistry Teachers. Lesson Plans: The Periodic Table and Bonding Download inquiry-based lesson plans and activity sheets to ...

Elemental's A113 Easter egg involves the periodic table, while Inside Out 2 labels the prison vault that the original ...

Roman worship was divided into the public and ... a place was set for him at the table, invitations were issued in his name, and a portion of the food served was set aside for him to enjoy.

Nearly 2,000 years ago this was the line that divided the Roman Empire from the rest of the world. Here in Germany the low mound is all that’s left of a wall that once stood some ten feet tall ...

Although their lives may have been different, they did have some things in common. In any Roman family life, the head of the household was a man. Although his wife looked after the household ...

Substances have both physical and chemical properties. Developing the periodic table The periodic table was developed by grouping elements with similar properties. This, together with a later ...

Play this game to learn about lots of different elements in the periodic table. While you're watching, look out for where different elements are found in the periodic table. Mrs Roberts ...