This introduces students to the development of the periodic table. How Mendeleev combined atomic number with propeties, Left gaps where he predicted properties of unknown elements. Also a task where students plot a gtaph of elemets and make
How to work out atomic mass, mass number, number of electrons and isotpes.
This is an interactiv white board resource the guides the student through the the periodic table and its main characteristics. Students are questioned and model answers are
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