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 ...

We're gonna have sparks, lava exploding, aren't we Miss? Mrs Roberts: Not quite. So, today we're going to look at the periodic table. That thing that you see behind your teacher on the wall in ...

We're gonna have sparks, lava exploding, aren't we Miss? Mrs Roberts: Not quite. So, today we're going to look at the periodic table. That thing that you see behind your teacher on the wall in ...

Active weather across the country on Monday and Tuesday has missed Chicagoland so far to the south and west of us. But that could change in the next couple of days… The Chicago area sits north ...