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 ...

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 ...

Cal: Ok. So, what actually is the periodic table? Mrs Roberts: At its simplest, the periodic table is all the different elements arranged together in a chart. A Russian scientist called Dmitri ...

You're listening to Chemistry in its element brought to you by Chemistry World ... Well, it is often said that elements close to each other in the periodic table share similar properties and so, ...