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 ... one oxygen atom combines with two hydrogen ...

Accompanying Lesson Plan: Lesson 3.2: Finding Volume—The Water Displacement Method The chart shows that atomic size and mass for the first 20 elements in the periodic table. The size of the atoms and ...

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 ... one oxygen atom combines with two hydrogen ...