Atomic Structure

What does the Periodic Table tell us about the elements, their properties and behaviours? And why does the atomic number define each element? Chemistry - Periodic Table - Learning Points. The structure of the atom reveals why the elements can be arranged in a particular order. Henry Moseley arranged elements by atomic number. The atomic number is the number of protons inside one atom of a particular element. The periodic table connects elements by atomic structure and chemical behaviour. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.