The covalent radius (a measure of how large individual atoms are) shows different trends if you are moving ... As you move from left to right across the periodic table, atoms have more electrons ...

Mrs Roberts: Well, the modern periodic table shows us all of the ... have similar physical and chemical properties and show trends. The table below shows the melting points of most elements ...

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 ...

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

National Periodic Table Day, observed annually on February 7, honors one of the most significant achievements in scientific ...